smile.nlp.pos

Enum PennTreebankPOS

java.lang.Object

java.lang.Enum<PennTreebankPOS>

smile.nlp.pos.PennTreebankPOS

All Implemented Interfaces:

java.io.Serializable, java.lang.Comparable<PennTreebankPOS>

public enum PennTreebankPOS
extends java.lang.Enum<PennTreebankPOS>

The Penn Treebank Tag set.

Enum Constant Summary

Enum Constants

Enum Constant and Description
$ Punctuation $
CC Coordinating conjunction.
CD Cardinal number.
CLOSING_PARENTHESIS Punctuation ) ] }
CLOSING_QUOTATION Punctuation ' or ''
COLON Punctuation ; : ...
COMMA Punctuation ,
DASH Punctuation -
DT Determiner.
EX Existential there.
FW Foreign word.
IN Preposition or subordinating conjunction.
JJ Adjective.
JJR Adjective, comparative.
JJS Adjective, superlative.
LS List item marker.
MD Modal verb.
NN Noun, singular or mass.
NNP Proper noun, singular.
NNPS Proper noun, plural.
NNS Noun, plural.
OPENING_PARENTHESIS Punctuation ( [ {
OPENING_QUOTATION Punctuation ` or ``
PDT Predeterminer.
POS Possessive ending.
POUND Punctuation #
PRP Personal pronoun.
PRP$ Possessive pronoun.
RB Adverb.
RBR Adverb, comparative.
RBS Adverb, superlative.
RP Particle.
SENT Sentence-break punctuation .
SYM Symbol.
TO to.
UH Interjection.
VB Verb, base form.
VBD Verb, past tense.
VBG Verb, gerund or present participle.
VBN Verb, past participle.
VBP Verb, non-3rd person singular present.
VBZ Verb, 3rd person singular present.
WDT Wh-determiner.
WP Wh-pronoun.
WP$ Possessive wh-pronoun.
WRB Wh-adverb.

Field Summary

Fields

Modifier and Type	Field and Description
boolean	open True if the POS is a open class.

Method Summary

Modifier and Type	Method and Description
static PennTreebankPOS	getValue(java.lang.String value) Returns an enum value from a string.
static PennTreebankPOS	valueOf(java.lang.String name) Returns the enum constant of this type with the specified name.
static PennTreebankPOS[]	values() Returns an array containing the constants of this enum type, in the order they are declared.

Methods inherited from class java.lang.Enum

clone, compareTo, equals, finalize, getDeclaringClass, hashCode, name, ordinal, toString, valueOf

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Enum Constant Detail

CC

public static final PennTreebankPOS CC

Coordinating conjunction. This category includes and, but, nor, or, yet (as in Yet it's cheap, cheap yet good), as well as the mathematical operators plus, minus, less, times (in the sense of "multiplied by") and over (in the sense of "divided by"), when they are spelled out. FOR in the sense of "because" is a coordinating conjunction (CC) rather than a subordinating conjunction (IN) -

He asked to be transferred, for/CC he was unhappy.

SO in the sense of "so that," on the other hand, is a subordinating conjunction (IN).

CD

public static final PennTreebankPOS CD

Cardinal number.

DT

public static final PennTreebankPOS DT

Determiner. This category includes the articles a(n), every, no and the, the indefinite determiners another, any and some, each, either (as in either way), neither (as in neither decision), that, these, this and those, and instances of all and both when they do not precede a determiner or possessive pronoun (as in all roads or both times). (Instances of all or both that do precede a determiner or possessive pronoun are tagged as predeterminers (PDT).) Since any noun phrase can contain at most one determiner, the fact that such can occur together with a determiner (as in the only such case) means that it should be tagged as an adjective (JJ), unless it precedes a determiner, as in such a good time, in which case it is a predeterminer (PDT).

EX

public static final PennTreebankPOS EX

Existential there. Existential there is the unstressed there that triggers inversion of the inflected verb and the logical subject of a sentence. Examples:

There/EX was a party in progress.

There/EX ensued a melee.

FW

public static final PennTreebankPOS FW

Foreign word.

IN

public static final PennTreebankPOS IN

Preposition or subordinating conjunction. We make no explicit distinction between prepositions and subordinating conjunctions. (The distinction is not lost, however -- a preposition is an IN that precedes a noun phrase or a prepositional phrase, and a subordinate conjunction is an IN that precedes a clause.) The preposition to has its own special tag TO.

JJ

public static final PennTreebankPOS JJ

Adjective. Hypenated compounds that are used as modifiers, like happy-go-lucky, one-of-a-kind and run-of-the-mill, are tagged as JJ. Ordinal numbers are tagged as JJ, as are compounds of the form n-th x-est, like fourth-largest.

JJR

public static final PennTreebankPOS JJR

Adjective, comparative. Adjectives with the comparative ending -er and a comparative meaning. Adjectives with a comparative meaning but without the comparative ending -er, like superior, should simply be tagged as JJ. Adjectives with the ending -er but without a strictly comparative meaning, like further in further details, should also simply be tagged as JJ.

JJS

public static final PennTreebankPOS JJS

Adjective, superlative. Adjectives with the superlative ending -est. Adjectives with a superlative meaning but without the superlative ending -est, like first, last or unsurpassed, should simply be tagged as JJ.

LS

public static final PennTreebankPOS LS

List item marker. This category includes letters and numerals when they are used to identify items in a list.

MD

public static final PennTreebankPOS MD

Modal verb. This category includes all verbs that don't take an -s ending in the third person singular present: can, could, (dare), may, might, must, ought, shall, should, will, would.

NN

public static final PennTreebankPOS NN

Noun, singular or mass.

NNS

public static final PennTreebankPOS NNS

Noun, plural.

NNP

public static final PennTreebankPOS NNP

Proper noun, singular.

NNPS

public static final PennTreebankPOS NNPS

Proper noun, plural.

PDT

public static final PennTreebankPOS PDT

Predeterminer. This category includes the following determinerlike elements when they precede an article or possessive pronoun. Examples:

all/PDT his marbles

nary/PDT a soul

both/PDT the girls

quite/PDT a mess

half/PDT his time

rather/PDT a nuisance

many/PDT a moon

such/PDT a good time

POS

public static final PennTreebankPOS POS

Possessive ending. The possessive ending on nouns ending in 's or ' is split off by the tagging algorithm and tagged as if it were a separate word. Examples:

JohnINP 's/POS idea

the parents/NNS '/POS distress

PRP

public static final PennTreebankPOS PRP

Personal pronoun. This category includes the personal pronouns proper, without regard for case distinctions (I, me, you, he, him, etc.), the reflexive pronouns ending in -selfor -selves, and the nominal possessive pronouns mine, yours, his, hers, ours and theirs. The adjectival possessive forms my, your, his, her, its, our and their, on the other hand, are tagged PP$.

PRP$

public static final PennTreebankPOS PRP$

Possessive pronoun. This category includes the adjectival possessive forms my, your, his, her, ids, one's, our and their. The nominal possessive pronouns mine, yours, his, hers, ours and theirs are tagged as personal pronouns (PP).

RB

public static final PennTreebankPOS RB

Adverb. This category includes most words that end in -ly as well as degree words like quite, too and very, posthead modifiers like enough and indeed (as in good enough, very well indeeed), and negative markers like not, n't, and never.

RBR

public static final PennTreebankPOS RBR

Adverb, comparative. Adverbs with the comparative ending -er but without a strictly comparative meaning, like later in "We can always come by later", should simply be tagged as RB.

RBS

public static final PennTreebankPOS RBS

Adverb, superlative.

RP

public static final PennTreebankPOS RP

Particle. This category includes a number of mostly monosyllabic words that also double as directional adverbs and prepositions.

SYM

public static final PennTreebankPOS SYM

Symbol. This includes / [ = *, #, etc. This tag should be used for mathematical, scientific and technical symbols or expressions that aren't words of English. It should not used for any and all technical expressions. For instance, the names of chemicals, units of measurements (including abbreviations thereof) and the like should be tagged as nouns.

TO

public static final PennTreebankPOS TO

to.

UH

public static final PennTreebankPOS UH

Interjection. This category includes my (as in My, what a gorgeous day), oh, please, see (as in See, it's like this), ah, well and yes, among others.

VB

public static final PennTreebankPOS VB

Verb, base form. This tag subsumes imperatives, infinitives and subjunctives.

VBD

public static final PennTreebankPOS VBD

Verb, past tense. This category includes the conditional form of the verb to be. Examples:

If I were/VBD rich, ...

If I were/VBD to win the lottery, ...

VBG

public static final PennTreebankPOS VBG

Verb, gerund or present participle.

VBN

public static final PennTreebankPOS VBN

Verb, past participle.

VBP

public static final PennTreebankPOS VBP

Verb, non-3rd person singular present.

VBZ

public static final PennTreebankPOS VBZ

Verb, 3rd person singular present.

WDT

public static final PennTreebankPOS WDT

Wh-determiner. This category includes which, as well as that when it is used as a relative pronoun.

WP

public static final PennTreebankPOS WP

Wh-pronoun. This category includes what, who and whom.

WP$

public static final PennTreebankPOS WP$

Possessive wh-pronoun. This category includes the wh-word whose.

WRB

public static final PennTreebankPOS WRB

Wh-adverb. This category includes how, where, why, etc. When in a temporal sense is tagged WRB. In the sense of "if," on the other hand, it is a subordinating conjunction (IN). Examples:

When/WRB he finally arrived, I was on my way out.

I like it when/IN you make dinner for me.

$

public static final PennTreebankPOS $

Punctuation $

SENT

public static final PennTreebankPOS SENT

Sentence-break punctuation . ? !

POUND

public static final PennTreebankPOS POUND

Punctuation #

DASH

public static final PennTreebankPOS DASH

Punctuation -

COMMA

public static final PennTreebankPOS COMMA

Punctuation ,

COLON

public static final PennTreebankPOS COLON

Punctuation ; : ...

OPENING_PARENTHESIS

public static final PennTreebankPOS OPENING_PARENTHESIS

Punctuation ( [ {

CLOSING_PARENTHESIS

public static final PennTreebankPOS CLOSING_PARENTHESIS

Punctuation ) ] }

OPENING_QUOTATION

public static final PennTreebankPOS OPENING_QUOTATION

Punctuation ` or ``

CLOSING_QUOTATION

public static final PennTreebankPOS CLOSING_QUOTATION

Punctuation ' or ''

Field Detail

open

public final boolean open

True if the POS is a open class.

Method Detail

values

public static PennTreebankPOS[] values()

Returns an array containing the constants of this enum type, in the order they are declared. This method may be used to iterate over the constants as follows:

for (PennTreebankPOS c : PennTreebankPOS.values())
    System.out.println(c);

Returns:

an array containing the constants of this enum type, in the order they are declared

valueOf

public static PennTreebankPOS valueOf(java.lang.String name)

Returns the enum constant of this type with the specified name. The string must match exactly an identifier used to declare an enum constant in this type. (Extraneous whitespace characters are not permitted.)

Parameters:

name - the name of the enum constant to be returned.

Returns:

the enum constant with the specified name

Throws:

java.lang.IllegalArgumentException - if this enum type has no constant with the specified name

java.lang.NullPointerException - if the argument is null

getValue

public static PennTreebankPOS getValue(java.lang.String value)

Returns an enum value from a string. Note that valueOf cannot be overridden so we have to use this workaround for converting custom strings to enum values without using valueOf method.