class PennTreebank(object):
    def __init__(self):
        self.coordinating_conjunction = "CC"
        self.cardinal_number = "CD"
        self.determiner = "DR"
        self.existential_there = "EX"
        self.foreign_word = "FW"
        self.preposition_conjuction = "IN"
        self.adjective = "JJ"
        self.adjective_comparative = "JJR"
        self.adjective_superlative = "JJS"
        self.list_item_marker = "LS"
        self.modal = "MD"
        self.noun_singular = "NN"
        self.noun_plural = "NNS"
        self.proper_noun_singular = "NNP"
        self.proper_noun_plural = "NNPS"
        self.predeterminer = "PDT"
        self.possessive_ending = "POS"
        self.personal_pronoun = "PRP"
        self.possesive_pronoun = "PRP$"
        self.adverb = "RB"
        self.adverb_comparative = "RBR"
        self.adverb_superlative = "RBS"
        self.particle = "RP"
        self.symbol = "SYM"
        self.to = "TO"
        self.interjection = "UH"
        self.verb_base_form = "VB"
        self.verb_past_tense = "VBD"
        self.verb_gerund = "VBG"
        self.verb_past_participle = "VBN"
        self.verb_non3rd_singular_present = "VBP"
        self.verb_3rd_singular_present = "VBZ"
        self.wh_determiner = "WDT"
        self.wh_pronoun = "WP"
        self.possessive_wh_pronoun = "WP$"
        self.wh_adverb = "WRB"

        self.CC="coordinating_conjunction"
        self.CD="cardinal_number"
        self.DR="determiner"
        self.EX="existential_there"
        self.FW="foreign_word"
        self.IN="preposition_conjuction"
        self.JJ="adjective"
        self.JJR="adjective_comparative"
        self.JJS="adjective_superlative"
        self.LS="list_item_marker"
        self.MD="modal"
        self.NN="noun_singular"
        self.NNS="noun_plural"
        self.NNP="proper_noun_singular"
        self.NNPS="proper_noun_plural"
        self.PDT="predeterminer"
        self.POS="possessive_ending"
        self.PRP="personal_pronoun"
        self.PRP_dollar="possesive_pronoun"
        self.RB="adverb"
        self.RBR="adverb_comparative"
        self.RBS="adverb_superlative"
        self.RP="particle"
        self.SYM="symbol"
        self.TO="to"
        self.UH="interjection"
        self.VB="verb_base_form"
        self.VBD="verb_past_tense"
        self.VBG="verb_gerund"
        self.VBN="verb_past_participle"
        self.VBP="verb_non3rd_singular_present"
        self.VBZ="verb_3rd_singular_present"
        self.WDT="wh_determiner"
        self.WP="wh_pronoun"
        self.WP_dollar="possessive_wh_pronoun"
        self.WRB="wh_adverb"
