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)].
Q: ['', 'Greek', 'vases', 'were', 'made', 'of', 'terracotta', 'or', 'baked', 'clay', 'before', 'the', 'clay', 'could', 'be', 'used', 'for', 'pottery', 'pebbles', 'and', 'other', 'impurities', 'had', 'to', 'be', 'removed', 'first', 'the', 'Potter', 'mixed', 'the', 'raw', 'clay', 'with', 'water', 'in', 'large', 'outdoor', 'pools', 'to', 'make', 'a', 'thick', 'silty', 'liquid', 'this', 'liquid', 'clay', 'stood', 'until', 'the', 'heavier', 'impurities', 'had', 'settled', 'to', 'the', 'bottom', 'the', 'refine', 'liquid', 'was', 'then', 'drained', 'off', 'into', 'a', 'second', 'pool', 'the', 'Potter', 'repeated', 'this', 'settling', 'process', 'several', 'times', 'the', 'pool', 'was', 'then', 'left', 'to', 'evaporate', 'in', 'the', 'Sun', 'leaving', 'behind', 'the', 'refined', 'clay', 'the', 'final', 'step', 'in', 'preparing', 'the', 'clay', 'for']
A:
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 NO_DIFF NO_DIFF NO_DIFF PUNCUATION_DIFF NO_DIFF NO_DIFF NO_DIFF NO_DIFF NO_DIFF NO_DIFF NO_DIFF PUNCUATION_DIFF CASE_AND_PUNCUATION_DIFF NO_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 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 PUNCUATION_DIFF CASE_DIFF STEM_BASED_DIFF NO_DIFF NO_DIFF NO_DIFF NO_DIFF NO_DIFF NO_DIFF NO_DIFF NO_DIFF PUNCUATION_DIFF CASE_DIFF CASE_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 CASE_AND_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 NO_DIFF