Given an input stream, the objective of this task is to classify whether words in the stream are grammatically correct or not. The input to this task is a stream of words, possibly from captions generated by a speech-to-text engine, and the output is a classification of each word from the labels (reason) = [NO_DIFF (correct), CASE_DIFF (case error), PUNCUATION_DIFF (punctuation error), CASE_AND_PUNCUATION_DIFF (both case and punctuation error), STEM_BASED_DIFF (stem word error), DIGIT_DIFF (digit error), INTRAWORD_PUNC_DIFF (intra-word punctuation error), and UNKNOWN_TYPE_DIFF (an error that does not corrrespond to the previous categories)].

["we're", 'in', 'the', 'British', 'Museum', 'and', "we're", 'looking', 'at', 'some', 'of', 'the', 'most', 'famous', 'sculptures', 'from', 'all', 'of', 'history', 'in', 'fact', 'perhaps', 'the', 'most', 'famous', 'sculptures', 'this', 'is', 'the', 'pediment', 'sculptures', 'from', 'the', 'East', 'End', 'of', 'the', 'Parthenon', 'on', 'the', 'Acropolis', 'in', 'Athens', 'created', 'in', 'the', 'fifth', 'century', 'BC', 'which', 'was', 'the', 'Classical', 'period', 'of', 'ancient', 'Greece', 'the', 'period', 'when', 'Athens', 'is', 'a', 'democracy', 'the', 'Golden', 'Age', 'and', 'the', 'Parthenon', 'was', 'its', 'most', 'important', 'Monument', 'it', 'was', 'a', 'Treasury', 'in', 'fact', 'for', 'the', 'new', 'Confederations', 'in', 'Greece', 'itself', 'and', 'so', 'it', 'was', 'a', 'symbol', 'of', 'wealth', 'of', 'power', 'of', 'wisdom']
NO_DIFF NO_DIFF NO_DIFF NO_DIFF PUNCUATION_DIFF NO_DIFF NO_DIFF NO_DIFF NO_DIFF NO_DIFF NO_DIFF NO_DIFF NO_DIFF NO_DIFF NO_DIFF NO_DIFF NO_DIFF NO_DIFF PUNCUATION_DIFF CASE_DIFF PUNCUATION_DIFF NO_DIFF NO_DIFF NO_DIFF NO_DIFF PUNCUATION_DIFF CASE_DIFF NO_DIFF NO_DIFF NO_DIFF NO_DIFF NO_DIFF NO_DIFF CASE_DIFF CASE_DIFF NO_DIFF NO_DIFF NO_DIFF NO_DIFF NO_DIFF NO_DIFF NO_DIFF NO_DIFF NO_DIFF NO_DIFF NO_DIFF NO_DIFF NO_DIFF PUNCUATION_DIFF NO_DIFF NO_DIFF NO_DIFF CASE_DIFF NO_DIFF NO_DIFF CASE_DIFF PUNCUATION_DIFF CASE_DIFF NO_DIFF NO_DIFF NO_DIFF NO_DIFF NO_DIFF PUNCUATION_DIFF NO_DIFF CASE_DIFF CASE_AND_PUNCUATION_DIFF NO_DIFF NO_DIFF NO_DIFF NO_DIFF NO_DIFF NO_DIFF NO_DIFF NO_DIFF NO_DIFF NO_DIFF NO_DIFF CASE_AND_PUNCUATION_DIFF NO_DIFF PUNCUATION_DIFF NO_DIFF NO_DIFF NO_DIFF CASE_DIFF NO_DIFF NO_DIFF PUNCUATION_DIFF CASE_DIFF NO_DIFF NO_DIFF NO_DIFF NO_DIFF NO_DIFF NO_DIFF PUNCUATION_DIFF NO_DIFF PUNCUATION_DIFF NO_DIFF NO_DIFF