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Treebank Statistics: UD_English-Atis: Features: Number

This feature is universal. It occurs with 2 different values: Plur, Sing.

29629 tokens (48%) have a non-empty value of Number. 468 types (50%) occur at least once with a non-empty value of Number. 421 lemmas (54%) occur at least once with a non-empty value of Number. The feature is used with 6 part-of-speech tags: PROPN (14775; 24% instances), NOUN (10930; 18% instances), PRON (2640; 4% instances), AUX (914; 1% instances), VERB (335; 1% instances), DET (35; 0% instances).

PROPN

14775 PROPN tokens (100% of all PROPN tokens) have a non-empty value of Number.

PROPN tokens may have the following values of Number:

• Plur (356; 2% of non-empty Number): airlines, tuesdays, mondays, sundays, thursdays, fridays, sunday
• Sing (14419; 98% of non-empty Number): san, boston, denver, francisco, atlanta, pittsburgh, dallas, baltimore, philadelphia, washington

Number seems to be lexical feature of PROPN. 100% lemmas (220) occur only with one value of Number.

NOUN

10930 NOUN tokens (100% of all NOUN tokens) have a non-empty value of Number.

NOUN tokens may have the following values of Number:

• Plur (3334; 31% of non-empty Number): flights, fares, airlines, dollars, airports, cities, meals, times, prices, types
• Sing (7596; 69% of non-empty Number): flight, pm, morning, wednesday, fare, trip, ground, round, transportation, class

Paradigm flight	Sing	Plur
	flight	flights

PRON

2640 PRON tokens (69% of all PRON tokens) have a non-empty value of Number.

The most frequent other feature values with which PRON and Number co-occurred: PronType=Prs (2640; 100%), Person=1 (2380; 90%), Case=Nom (1377; 52%).

PRON tokens may have the following values of Number:

• Plur (6; 0% of non-empty Number): we, they, them
• Sing (2634; 100% of non-empty Number): me, i, you, it
• EMPTY (1188): what, there, which, that, ‘s, one, this, who, each, those

AUX

914 AUX tokens (41% of all AUX tokens) have a non-empty value of Number.

The most frequent other feature values with which AUX and Number co-occurred: Mood=Ind (914; 100%), Person=3 (914; 100%), Tense=Pres (914; 100%), VerbForm=Fin (914; 100%).

AUX tokens may have the following values of Number:

• Sing (914; 100% of non-empty Number): is, does, ‘s, ‘re
• EMPTY (1340): are, would, ‘d, can, do, could, ‘m, be, will, may

VERB

335 VERB tokens (6% of all VERB tokens) have a non-empty value of Number.

The most frequent other feature values with which VERB and Number co-occurred: Mood=Ind (335; 100%), Tense=Pres (335; 100%), VerbForm=Fin (335; 100%).

VERB tokens may have the following values of Number:

• Sing (335; 100% of non-empty Number): is, leaves, arrives, serves, goes, has, flies, stops, makes, uses
• EMPTY (5542): show, list, like, leaving, fly, need, arriving, have, give, leave

Number seems to be lexical feature of VERB. 100% lemmas (27) occur only with one value of Number.

DET

35 DET tokens (1% of all DET tokens) have a non-empty value of Number.

The most frequent other feature values with which DET and Number co-occurred: PronType=Prs (35; 100%).

DET tokens may have the following values of Number:

• Plur (9; 26% of non-empty Number): their
• Sing (26; 74% of non-empty Number): your, my
• EMPTY (4850): the, a, all, what, which, any, an, that, this, no

Relations with Agreement in Number

The 10 most frequent relations where parent and child node agree in Number: PROPN –[flat]–> PROPN (2736; 89%), NOUN –[compound]–> NOUN (1279; 73%), NOUN –[nmod]–> NOUN (540; 63%), PROPN –[conj]–> PROPN (456; 100%), PROPN –[nmod]–> PROPN (278; 99%), PROPN –[appos]–> PROPN (218; 100%), NOUN –[conj]–> NOUN (142; 90%), NOUN –[cop]–> AUX (92; 65%), PROPN –[compound]–> NOUN (60; 98%), PROPN –[list]–> NOUN (56; 98%).

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