diff --git a/semantic_parser/parser.py b/semantic_parser/parser.py
new file mode 100644
index 0000000..2396f61
--- /dev/null
+++ b/semantic_parser/parser.py
@@ -0,0 +1,35 @@
+import jsgf
+
+book_grammar = jsgf.parse_grammar_file('pullrequest.jsgf')
+
+def get_dialog_act(rule):
+    slots = []
+    get_slots(rule.expansion, slots)
+    return {'act': rule.grammar.name, 'slots': slots}
+
+def get_slots(expansion, slots):
+    if expansion.tag != '':
+        slots.append((expansion.tag, expansion.current_match))
+        return
+
+    for child in expansion.children:
+        get_slots(child, slots)
+
+    if not expansion.children and isinstance(expansion, jsgf.NamedRuleRef):
+        get_slots(expansion.referenced_rule.expansion, slots)
+
+def nlu(utterance):
+    matched = book_grammar.find_matching_rules(utterance)
+
+    if matched:
+        return get_dialog_act(matched[0])
+    else:
+        return {'act': 'null', 'slots': []}
+
+
+#result = nlu('jakie są dostępne funkcje')
+#result = nlu('w czym możesz mi pomóc')
+
+result = nlu('jakie są nowe pull requesty')
+#result = nlu('ile jest nowych pull requestów')
+print(result)
\ No newline at end of file
diff --git a/semantic_parser/pomoc.jsgf b/semantic_parser/pomoc.jsgf
new file mode 100644
index 0000000..293ec1a
--- /dev/null
+++ b/semantic_parser/pomoc.jsgf
@@ -0,0 +1,9 @@
+#JSGF V1.0 UTF-8 pl;
+
+grammar pomoc;
+
+public <pomoc_zapytanie> = jakie są dostępne <functions> {functions} | w czym możesz mi <help> {help};
+
+<help> = pomoc | pomóc;
+
+<functions> = komenda | komendy | funckja | funkcje | polecenie | polecenia;
diff --git a/semantic_parser/pullrequest.jsgf b/semantic_parser/pullrequest.jsgf
new file mode 100644
index 0000000..6c6a78a
--- /dev/null
+++ b/semantic_parser/pullrequest.jsgf
@@ -0,0 +1,11 @@
+#JSGF V1.0 UTF-8 pl;
+
+grammar pullrequest;
+
+public <pull_request_zapytanie> = <action> {action} <new> <pullrequest>;
+
+<new> = [nowe] | [nowych];
+
+<pullrequest> = pull requesty | pull requestów;
+
+<action> = ile jest | jakie są;
\ No newline at end of file