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eliza.py
326
eliza.py
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print("Hello world");
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from nltk.chat.util import Chat, reflections
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# a table of response pairs, where each pair consists of a
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# regular expression, and a list of possible responses,
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# with group-macros labelled as %1, %2.
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pairs = (
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(
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r"I need (.*)",
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(
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"Why do you need %1?",
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"Would it really help you to get %1?",
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"Are you sure you need %1?",
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),
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),
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(
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r"Why don\'t you (.*)",
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(
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"Do you really think I don't %1?",
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"Perhaps eventually I will %1.",
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"Do you really want me to %1?",
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),
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),
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(
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r"Why can\'t I (.*)",
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(
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"Do you think you should be able to %1?",
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"If you could %1, what would you do?",
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"I don't know -- why can't you %1?",
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"Have you really tried?",
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),
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),
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(
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r"I can\'t (.*)",
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(
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"How do you know you can't %1?",
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"Perhaps you could %1 if you tried.",
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"What would it take for you to %1?",
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),
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),
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(
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r"I am (.*)",
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(
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"Did you come to me because you are %1?",
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"How long have you been %1?",
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"How do you feel about being %1?",
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),
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),
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(
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r"I\'m (.*)",
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(
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"How does being %1 make you feel?",
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"Do you enjoy being %1?",
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"Why do you tell me you're %1?",
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"Why do you think you're %1?",
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),
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),
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(
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r"Are you (.*)",
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(
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"Why does it matter whether I am %1?",
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"Would you prefer it if I were not %1?",
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"Perhaps you believe I am %1.",
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"I may be %1 -- what do you think?",
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),
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),
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(
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r"What (.*)",
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(
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"Why do you ask?",
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"How would an answer to that help you?",
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"What do you think?",
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),
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),
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(
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r"How (.*)",
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(
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"How do you suppose?",
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"Perhaps you can answer your own question.",
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"What is it you're really asking?",
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),
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),
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(
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r"Because (.*)",
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(
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"Is that the real reason?",
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"What other reasons come to mind?",
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"Does that reason apply to anything else?",
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"If %1, what else must be true?",
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),
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),
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(
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r"(.*) sorry (.*)",
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(
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"There are many times when no apology is needed.",
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"What feelings do you have when you apologize?",
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),
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),
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(
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r"Hello(.*)",
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(
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"Hello... I'm glad you could drop by today.",
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"Hi there... how are you today?",
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"Hello, how are you feeling today?",
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),
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),
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(
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r"I think (.*)",
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("Do you doubt %1?", "Do you really think so?", "But you're not sure %1?"),
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),
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(
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r"(.*) friend (.*)",
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(
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"Tell me more about your friends.",
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"When you think of a friend, what comes to mind?",
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"Why don't you tell me about a childhood friend?",
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),
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),
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(r"Yes", ("You seem quite sure.", "OK, but can you elaborate a bit?")),
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(
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r"(.*) computer(.*)",
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(
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"Are you really talking about me?",
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"Does it seem strange to talk to a computer?",
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"How do computers make you feel?",
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"Do you feel threatened by computers?",
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),
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),
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(
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r"Is it (.*)",
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(
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"Do you think it is %1?",
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"Perhaps it's %1 -- what do you think?",
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"If it were %1, what would you do?",
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"It could well be that %1.",
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),
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),
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(
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r"It is (.*)",
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(
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"You seem very certain.",
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"If I told you that it probably isn't %1, what would you feel?",
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),
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),
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(
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r"Can you (.*)",
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(
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"What makes you think I can't %1?",
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"If I could %1, then what?",
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"Why do you ask if I can %1?",
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),
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),
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(
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r"Can I (.*)",
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(
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"Perhaps you don't want to %1.",
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"Do you want to be able to %1?",
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"If you could %1, would you?",
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),
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),
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(
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r"You are (.*)",
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(
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"Why do you think I am %1?",
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"Does it please you to think that I'm %1?",
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"Perhaps you would like me to be %1.",
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"Perhaps you're really talking about yourself?",
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),
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),
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(
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r"You\'re (.*)",
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(
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"Why do you say I am %1?",
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"Why do you think I am %1?",
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"Are we talking about you, or me?",
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),
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),
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(
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r"I don\'t (.*)",
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("Don't you really %1?", "Why don't you %1?", "Do you want to %1?"),
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),
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(
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r"I feel (.*)",
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(
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"Good, tell me more about these feelings.",
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"Do you often feel %1?",
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"When do you usually feel %1?",
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"When you feel %1, what do you do?",
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),
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),
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(
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r"I have (.*)",
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(
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"Why do you tell me that you've %1?",
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"Have you really %1?",
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"Now that you have %1, what will you do next?",
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),
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),
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(
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r"I would (.*)",
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(
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"Could you explain why you would %1?",
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"Why would you %1?",
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"Who else knows that you would %1?",
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),
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),
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(
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r"Is there (.*)",
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(
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"Do you think there is %1?",
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"It's likely that there is %1.",
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"Would you like there to be %1?",
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),
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),
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(
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r"My (.*)",
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(
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"I see, your %1.",
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"Why do you say that your %1?",
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"When your %1, how do you feel?",
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),
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),
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(
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r"You (.*)",
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(
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"We should be discussing you, not me.",
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"Why do you say that about me?",
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"Why do you care whether I %1?",
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),
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),
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(r"Why (.*)", ("Why don't you tell me the reason why %1?", "Why do you think %1?")),
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(
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r"I want (.*)",
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(
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"What would it mean to you if you got %1?",
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"Why do you want %1?",
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"What would you do if you got %1?",
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"If you got %1, then what would you do?",
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),
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),
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(
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r"(.*) mother(.*)",
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(
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"Tell me more about your mother.",
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"What was your relationship with your mother like?",
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"How do you feel about your mother?",
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"How does this relate to your feelings today?",
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"Good family relations are important.",
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),
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),
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(
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r"(.*) father(.*)",
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(
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"Tell me more about your father.",
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"How did your father make you feel?",
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"How do you feel about your father?",
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"Does your relationship with your father relate to your feelings today?",
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"Do you have trouble showing affection with your family?",
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),
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),
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(
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r"(.*) child(.*)",
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(
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"Did you have close friends as a child?",
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"What is your favorite childhood memory?",
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"Do you remember any dreams or nightmares from childhood?",
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"Did the other children sometimes tease you?",
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"How do you think your childhood experiences relate to your feelings today?",
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),
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),
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(
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r"(.*)\?",
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(
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"Why do you ask that?",
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"Please consider whether you can answer your own question.",
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"Perhaps the answer lies within yourself?",
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"Why don't you tell me?",
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),
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),
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(
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r"quit",
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(
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"Thank you for talking with me.",
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"Good-bye.",
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"Thank you, that will be $150. Have a good day!",
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),
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),
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(
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r"(.*)",
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(
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"Please tell me more.",
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"Let's change focus a bit... Tell me about your family.",
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"Can you elaborate on that?",
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"Why do you say that %1?",
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"I see.",
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"Very interesting.",
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"%1.",
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"I see. And what does that tell you?",
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"How does that make you feel?",
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"How do you feel when you say that?",
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),
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),
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)
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eliza_chatbot = Chat(pairs, reflections)
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def eliza_chat():
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print("Therapist\n---------")
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print("Talk to the program by typing in plain English, using normal upper-")
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print('and lower-case letters and punctuation. Enter "quit" when done.')
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print("=" * 72)
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print("Hello. How are you feeling today?")
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eliza_chatbot.converse()
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def demo():
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eliza_chat()
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if __name__ == "__main__":
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demo()
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