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CoreNLP POS

CoreNLP POS-tagging is done using CoreNLP Server using official pre-trained model invoked from fromnltk.parse.corenlp.CoreNLPParser

Tagset

What is the tag set used by the Stanford Tagger?
You can train models for the Stanford POS Tagger with any tag set. For the models we distribute, the tag set depends on the language, reflecting the underlying treebanks that models have been built from. That is, the tag set was wholly or mainly decided by the treebank producers not us). Here are relevant links:

References

Appendix

NLTK Treebank

$
dollar e.g. $, -$, --$, A$, C$, HK$, M$, NZ$, S$, U.S.$, US$
''
closing quotation mark e.g. ', ''
(
opening parenthesis e.g. (, [, {
,
comma e.g. ,
--
dash e.g. --
.
sentence terminator e.g. ., !, ?
:
colon or ellipsis e.g. :, ;, ...
``
opening quotation mark e.g. `, ``

Treebank Tagset

Tag
Description
CC
conjunction, coordinating e.g. &, 'n, and, both, but, either, et, for, less, minus, neither, nor, or, plus, so, therefore, times, v., versus, vs., whether, yet
CD
numeral, cardinal e.g. mid-1890, nine-thirty, forty-two, one-tenth, ten, million, 0.5, one, forty-, seven, 1987, twenty, '79, zero, two, 78-degrees, eighty-four, IX, '60s, .025, fifteen, 271,124, dozen, quintillion, DM2,000, ...
DT
determiner e.g. all, an, another, any, both, del, each, either, every, half, la, many, much, nary, neither, no, some, such, that, the, them, these, this, those
EX
existential there e.g. there
FW
foreign word e.g. gemeinschaft, hund, ich, jeux, habeas, Haementeria, Herr, K'ang-si, vous, lutihaw, alai, je, jour, objets, salutaris, fille, quibusdam, pas, trop, Monte, terram, fiche, oui, corporis, ...
IN
preposition or conjunction, subordinating e.g. astride, among, uppon, whether, out, inside, pro, despite, on, by, throughout, below, within, for, towards, near, behind, atop, around, if, like, until, below, next, into, if, beside, ...
JJ
adjective or numeral, ordinal e.g. third, ill-mannered, pre-war, regrettable, oiled, calamitous, first, separable, ectoplasmic, battery-powered, participatory, fourth, still-to-be-named, multilingual, multi-disciplinary, ...
JJR
adjective, comparative e.g. bleaker, braver, breezier, briefer, brighter, brisker, broader, bumper, busier, calmer, cheaper, choosier, cleaner, clearer, closer, colder, commoner, costlier, cozier, creamier, crunchier, cuter, ...
JJS
adjective, superlative e.g. calmest, cheapest, choicest, classiest, cleanest, clearest, closest, commonest, corniest, costliest, crassest, creepiest, crudest, cutest, darkest, deadliest, dearest, deepest, densest, dinkiest, ...
LS
list item marker e.g. A, A., B, B., C, C., D, E, F, First, G, H, I, J, K, One, SP-44001, SP-44002, SP-44005, SP-44007, Second, Third, Three, Two, *, a, b, c, d, first, five, four, one, six, three, two
MD
modal auxiliary e.g. can, cannot, could, couldn't, dare, may, might, must, need, ought, shall, should, shouldn't, will, would
NN
noun, common, singular or mass e.g. common-carrier, cabbage, knuckle-duster, Casino, afghan, shed, thermostat, investment, slide, humour, falloff, slick, wind, hyena, override, subhumanity, machinist, ...
NNP
noun, proper, singular e.g. Motown, Venneboerger, Czestochwa, Ranzer, Conchita, Trumplane, Christos, Oceanside, Escobar, Kreisler, Sawyer, Cougar, Yvette, Ervin, ODI, Darryl, CTCA, Shannon, A.K.C., Meltex, Liverpool, ...
NNPS
noun, proper, plural e.g. Americans, Americas, Amharas, Amityvilles, Amusements, Anarcho-Syndicalists, Andalusians, Andes, Andruses, Angels, Animals, Anthony, Antilles, Antiques, Apache, Apaches, Apocrypha, ...
NNS
noun, common, plural e.g. undergraduates, scotches, bric-a-brac, products, bodyguards, facets, coasts, divestitures, storehouses, designs, clubs, fragrances, averages, subjectivists, apprehensions, muses, factory-jobs, ...
PDT
pre-determiner e.g. all, both, half, many, quite, such, sure, this
POS
genitive marker e.g. ', 's
PRP
pronoun, personal e.g. hers, herself, him, himself, hisself, it, itself, me, myself, one, oneself, ours, ourselves, ownself, self, she, thee, theirs, them, themselves, they, thou, thy, us
PRP$
pronoun, possessive e.g. her, his, mine, my, our, ours, their, thy, your
RB
adverb e.g. occasionally, unabatingly, maddeningly, adventurously, professedly, stirringly, prominently, technologically, magisterially, predominately, swiftly, fiscally, pitilessly, ...
RBR
adverb, comparative e.g. further, gloomier, grander, graver, greater, grimmer, harder, harsher, healthier, heavier, higher, however, larger, later, leaner, lengthier, less-, perfectly, lesser, lonelier, longer, louder, lower, more, ...
RBS
adverb, superlative e.g. best, biggest, bluntest, earliest, farthest, first, furthest, hardest, heartiest, highest, largest, least, less, most, nearest, second, tightest, worst
RBS
adverb, superlative e.g. best, biggest, bluntest, earliest, farthest, first, furthest, hardest, heartiest, highest, largest, least, less, most, nearest, second, tightest, worst
RBS
particle e.g. aboard, about, across, along, apart, around, aside, at, away, back, before, behind, by, crop, down, ever, fast, for, forth, from, go, high, i.e., in, into, just, later, low, more, off, on, open, out, over, per, pie, raising, start, teeth, that, through, under, unto, up, up-pp, upon, whole, with, you
RP
particle e.g. aboard, about, across, along, apart, around, aside, at, away, back, before, behind, by, crop, down, ever, fast, for, forth, from, go, high, i.e., in, into, just, later, low, more, off, on, open, out, over, per, pie, raising, start, teeth, that, through, under, unto, up, up-pp, upon, whole, with, you
SYM
symbol e.g. %, &, ', '', ''., ), )., *, +, ,., <, =, >, @, A[fj], U.S, U.S.S.R, *, **, ***
TO
"to" as preposition or infinitive marker e.g. to
UH
interjection e.g. Goodbye, Goody, Gosh, Wow, Jeepers, Jee-sus, Hubba, Hey, Kee-reist, Oops, amen, huh, howdy, uh, dammit, whammo, shucks, heck, anyways, whodunnit, honey, golly, man, baby, diddle, hush, sonuvabitch, ...
VB
verb, base form e.g. ask, assemble, assess, assign, assume, atone, attention, avoid, bake, balkanize, bank, begin, behold, believe, bend, benefit, bevel, beware, bless, boil, bomb, boost, brace, break, bring, broil, brush, build, ...
VBD
verb, base form e.g. ask, assemble, assess, assign, assume, atone, attention, avoid, bake, balkanize, bank, begin, behold, believe, bend, benefit, bevel, beware, bless, boil, bomb, boost, brace, break, bring, broil, brush, build, ...
VBG
verb, present participle or gerund e.g. telegraphing, stirring, focusing, angering, judging, stalling, lactating, hankerin', alleging, veering, capping, approaching, traveling, besieging, encrypting, interrupting, erasing, wincing, ...
VBN
verb, past participle e.g. multihulled, dilapidated, aerosolized, chaired, languished, panelized, used, experimented, flourished, imitated, reunifed, factored, condensed, sheared, unsettled, primed, dubbed, desired, ...
VBP
verb, present tense, not 3rd person singular e.g. predominate, wrap, resort, sue, twist, spill, cure, lengthen, brush, terminate, appear, tend, stray, glisten, obtain, comprise, detest, tease, attract, emphasize, mold, postpone, sever, return, wag, ...
VBZ
verb, present tense, 3rd person singular e.g. bases, reconstructs, marks, mixes, displeases, seals, carps, weaves, snatches, slumps, stretches, authorizes, smolders, pictures, emerges, stockpiles, seduces, fizzes, uses, bolsters, slaps, speaks, pleads, ...
WDT
WH-determiner e.g. that, what, whatever, which, whichever
WP
WH-determiner e.g. that, what, whatever, which, whichever
WP$
WH-pronoun, possessive e.g. whose
WRB
WH-adverb e.g. how, however, whence, whenever, where, whereby, whereever, wherein, whereof, why

References