exceptions for lemmatizer - alpha

LemmaGenSockets/LemmaGenSockets/LemmatizerListener.cs

@@ -53,6 +53,29 @@ namespace LemmaGenSockets
 
         private string lemmatizeWord(string languageCode, string word)
         {
+            // exceptions
+            Dictionary<String, HashSet<String>> exceptions = new Dictionary<string, HashSet<string>>();
+
+            HashSet<String> plExceptions = new HashSet<string>();
+            plExceptions.Add("i");
+            plExceptions.Add("o");
+            plExceptions.Add("do");
+            exceptions.Add("pl", plExceptions);
+
+            HashSet<String> enExceptions = new HashSet<string>();
+            enExceptions.Add("d");
+            exceptions.Add("en", enExceptions);
+
+            HashSet<String> languageExceptions;
+            if (exceptions.TryGetValue(languageCode, out languageExceptions))
+            {
+                if(languageExceptions.Contains(word))
+                {
+                    return word;
+                }
+            }
+
+
             string[] parts = word.Split(wordInnerSeparator);
             if (parts.Length == 2)
             {