Lingua::EN::Tagger This module uses part-of-speech statistics from the Penn Treebank to assign POS tags to English text. The tagger applies a bigram (two-word) Hidden Markov Model to guess the appropriate POS tag for a word. That means that the tagger will try to assign a POS tag based on the known POS tags for a given word and the POS tag assigned to its predecessor. The tagger tends to assume unknown words are nouns, but this behavior is configurable. The POS tagger can also be used to find maximal noun phrases in tagged text. You can also use this module to extract all nouns and/or noun phrases. TAG SET ---------------------------------------------------------------- The set of POS tags used here is a modified version of the Penn Treebank tagset. Tags with non-letter characters have been redefined to work better in our data structures. Also, the ``Determiner'' tag (DET) has been changed from `DT', in order to avoid confusion with the HTML tag,
. ----------------------------------------------------------------- CC Conjunction, coordinating and, or CD Adjective, cardinal number 3, fifteen DET Determiner this, each, some EX Pronoun, existential there there FW Foreign words IN Preposition / Conjunction for, of, although, that JJ Adjective happy, bad JJR Adjective, comparative happier, worse JJS Adjective, superlative happiest, worst LS Symbol, list item A, A. MD Verb, modal can, could, 'll NN Noun aircraft, data NNP Noun, proper London, Michael NNPS Noun, proper, plural Australians, Methodists NNS Noun, plural women, books PDT Determiner, prequalifier quite, all, half POS Possessive 's, ' PRP Determiner, possessive second mine, yours PRPS Determiner, possessive their, your RB Adverb often, not, very, here RBR Adverb, comparative faster RBS Adverb, superlative fastest RP Adverb, particle up, off, out SYM Symbol * TO Preposition to UH Interjection oh, yes, mmm VB Verb, infinitive take, live VBD Verb, past tense took, lived VBG Verb, gerund taking, living VBN Verb, past/passive participle taken, lived VBP Verb, base present form take, live VBZ Verb, present 3SG -s form takes, lives WDT Determiner, question which, whatever WP Pronoun, question who, whoever WPS Determiner, possessive & question whose WRB Adverb, question when, how, however PP Punctuation, sentence ender ., !, ? PPC Punctuation, comma , PPD Punctuation, dollar sign $ PPL Punctuation, quotation mark left `` PPR Punctuation, quotation mark right '' PPS Punctuation, colon, semicolon, elipsis :, ..., - LRB Punctuation, left bracket (, {, [ RRB Punctuation, right bracket ), }, ]