2 English POS tagging 2.1 Explore deterministic constraints Suppose that, following (Chomsky, 1970), we distinguish major lexical categories (Noun, Verb, Adjective and Preposition) by two binary features: A word occurring in between a preceding word the and a following word of always bears the feature +N.
consider the annotation guideline of English Treebank (Marcus et al., 1993) instead.