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)].

['Hey', 'so', "we're", 'going', 'to', 'be', 'talking', 'about', 'amino', 'acid', 'synthesis', 'and', "we're", 'just', 'going', 'to', 'stick', 'with', 'two', 'of', 'the', 'main', 'methods', 'for', 'synthesizing', 'amino', 'acids', 'and', 'they', 'both', 'just', 'happen', 'to', 'be', 'named', 'after', 'old', 'German', 'chemist', 'because', 'synthesizing', 'amino', 'acids', 'was', 'probably', 'hot', 'stuff', 'back', 'in', 'the', 'mid', 'to', 'late', '1800s', 'and', 'that', 'the', 'first', 'method', 'that', "we're", 'going', 'to', 'be', 'talking', 'about', 'is', 'Gabriel', 'synthesis', 'named', 'after', 'Sigmund', 'Gabriel', 'and', 'the', 'second', 'method', 'is', 'called', 'Strecker', 'synthesis', 'so', 'it', 'is', 'named', 'after', 'Adolf', 'Strecker', 'so', "let's", 'start', 'out', 'with', 'Gabriel', 'synthesis', 'first', 'in', 'Gabriel', 'synthesis', 'we']
PUNCUATION_DIFF CASE_DIFF NO_DIFF NO_DIFF NO_DIFF NO_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 NO_DIFF NO_DIFF NO_DIFF NO_DIFF NO_DIFF NO_DIFF NO_DIFF NO_DIFF PUNCUATION_DIFF CASE_DIFF NO_DIFF NO_DIFF NO_DIFF STEM_BASED_DIFF NO_DIFF NO_DIFF NO_DIFF NO_DIFF NO_DIFF NO_DIFF STEM_BASED_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 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 NO_DIFF NO_DIFF NO_DIFF PUNCUATION_DIFF NO_DIFF NO_DIFF UNKNOWN_TYPE_DIFF PUNCUATION_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 UNKNOWN_TYPE_DIFF PUNCUATION_DIFF CASE_DIFF NO_DIFF NO_DIFF NO_DIFF NO_DIFF NO_DIFF NO_DIFF PUNCUATION_DIFF CASE_DIFF NO_DIFF PUNCUATION_DIFF NO_DIFF