Dear Sir,

The code ran fine.

There are two issues coming in your code
 (i) In def hmm(test_corp):
        File "C:/Python27/EntityResolutionCodeReview3.py", line 12, in hmm
        hmm_tagger = HiddenMarkovModelTagger.train(train_corp)
        NameError: global name 'train_corp' is not defined

I repaired it by putting
    reader = TaggedCorpusReader('.', r'.*\.pos')
    files = reader.fileids()
    train_corp = reader.tagged_sents('TotalData.pos')
    test_corp = reader.tagged_sents('TestHMM.pos')

After I repaired it, the second error coming was,

 (ii) File "C:/Python27/EntityResolutionCodeReview3.py", line 56, in entity_resolution
    train_words = set(({word: (word in word_tokenize(x[0])) for word in all_words}, x[1]) for x in train_sents)
TypeError: unhashable type: 'dict'

I changed all_words = set...classifier, test_words)) with the portion as given in my original code
as, "t = classifier, t1))"

The Code is running fine now.

But did I handle it fine?

Please suggest.