from Infogistics’ NLProcessor

Open class categories

POS Tag Description Example
JJ adjective green
JJR adjective, comparative greener
JJS adjective, superlative greenest
RB adverb however, usually, naturally, here, good
RBR adverb, comparative better
RBS adverb, superlative best
NN common noun table
NNS noun plural tables
NNP proper noun John
NNPS plural proper noun Vikings
VB verb base form take
VBD verb past took
VBG gerund taking
VBN past participle taken
VBP verb, present, non-3d take
VBZ verb present, 3d person takes
FW foreign word d’hoevre

Closed class categories

POS Tag Description Example
CD cardinal number 1, third
CC coordinating conjunction and
DT determiner the
EX existential there thereis
IN preposition in, of, like
LS list marker 1)
MD modal could, will
PDT predeterminer boththe boys
POS possessive ending friend’s
PRP personal pronoun I, he, it
PRP$ possessive pronoun (use in CQL [tag=”PRP\$”]) my, his
RP particle giveup
TO to (both “to go” and “to him”) togo,tohim
UH interjection uhhuhhuhh
WDT wh-determiner which
WP wh-pronoun who, what
WP$ possessive wh-pronoun (use in CQL [tag=”WP\$”]) whose
WRB wh-adverb where, when