SYM

This is part of archived UD v1 documentation. See http://universaldependencies.org/ for the current version.

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`SYM`: symbol

Definition

A symbol is a word-like entity that differs from ordinary words by form, function, or both.

We recognize as symbols:

currency symbols: $
mathematical operators: µg / m3
’/’ used a separator: 2001 / 923 / CE
emoticons and emoji: :-)
URL’s and emails

The following are not symbols:

Proper nouns with numbers and special characters: 130XE, DC10, DC-10 are tagged PROPN.
Acronyms for proper nouns: UN, NATO are tagged as PROPN.
Abbreviated words: Sig. (signore), kg (chilogrammo), km (chilometro), dott (dottore) are tagged NOUN.
Characters used as bullets in itemized lists (*, •, ‣) are PUNCT.

Examples

$, %, §, ©
+, −, ×, ÷, =, <, >
:), ♥‿♥, 😝
john.doe@universal.org, http://universaldependencies.org/

Treebank Statistics (UD_Italian)

There are 10 SYM lemmas (0%), 10 SYM types (0%) and 100 SYM tokens (0%). Out of 17 observed tags, the rank of SYM is: 16 in number of lemmas, 16 in number of types and 15 in number of tokens.

The 10 most frequent SYM lemmas: %, &, +, -, http://europa.eu.int/comm/secretariat@general/sgb/state@aids, http://www.linkiesta.it/Locatelli-lombardia-Nicoli-regione, www.amnesty.it, www.centrodonmilani.org, www.legadelcane.org, x

The 10 most frequent SYM types: %, &, +, -, http://europa.eu.int/comm/secretariat@general/sgb/state@aids, http://www.linkiesta.it/Locatelli-lombardia-Nicoli-regione, www.amnesty.it, www.centrodonmilani.org, www.legadelcane.org, x

The 10 most frequent ambiguous lemmas: & (SYM 6, PROPN 1), - (PUNCT 771, SYM 2)

The 10 most frequent ambiguous types: & (SYM 6, PROPN 1), - (PUNCT 772, SYM 2), x (ADJ 1, SYM 1)

&
- SYM 6: Dov’ è la sede centrale di la Lindt & Sprüngli ?
- PROPN 1: Leon Chaitow , Come affrontare e vincere lo stress - Tecniche di rilassamento e di meditazione , Sperling & Kupfer Editori A. Marillac , Come rilassar si , Manuali Pratici MEB .
-
- PUNCT 772: ” Ma no , non è così - replica Ante - .
- SYM 2: Sì , li ho visti giocare in tv con il Paris St - Germain , ma non ho scoperto niente di nuovo .
x
- ADJ 1: Quando la rivoluzione di luglio tolse il potere a Carlo x in il 1830 , Balzac si dichiarò legittimista , sostenendo la casata Borbone di Carlo - ma sotto condizione .
- SYM 1: In una piccola tela ( solo 39 x 49 centimetri ) illustra la via Krupp a Marina piccola :

Morphology

The form / lemma ratio of SYM is 1.000000 (the average of all parts of speech is 1.488836).

The 1st highest number of forms (1) was observed with the lemma “%”: %.

The 2nd highest number of forms (1) was observed with the lemma “&”: &.

The 3rd highest number of forms (1) was observed with the lemma “+”: +.

SYM does not occur with any features.

Relations

SYM nodes are attached to their parents using 10 different relations: it-dep/nmod (63; 63% instances), it-dep/dobj (13; 13% instances), it-dep/name (8; 8% instances), it-dep/nsubj (5; 5% instances), it-dep/conj (3; 3% instances), it-dep/xcomp (3; 3% instances), it-dep/nsubjpass (2; 2% instances), it-dep/mwe (1; 1% instances), it-dep/nummod (1; 1% instances), it-dep/root (1; 1% instances)

Parents of SYM nodes belong to 9 different parts of speech: VERB (52; 52% instances), NOUN (21; 21% instances), ADJ (11; 11% instances), PROPN (8; 8% instances), ADP (2; 2% instances), NUM (2; 2% instances), SYM (2; 2% instances), ADV (1; 1% instances), ROOT (1; 1% instances)

14 (14%) SYM nodes are leaves.

0 (0%) SYM nodes have one child.

8 (8%) SYM nodes have two children.

78 (78%) SYM nodes have three or more children.

The highest child degree of a SYM node is 5.

Children of SYM nodes are attached using 13 different relations: it-dep/nummod (84; 29% instances), it-dep/det (83; 29% instances), it-dep/case (57; 20% instances), it-dep/nmod (38; 13% instances), it-dep/advmod (8; 3% instances), it-dep/amod (4; 1% instances), it-dep/punct (3; 1% instances), it-dep/cc (2; 1% instances), it-dep/conj (2; 1% instances), it-dep/acl:relcl (1; 0% instances), it-dep/advcl (1; 0% instances), it-dep/cop (1; 0% instances), it-dep/nsubj (1; 0% instances)

Children of SYM nodes belong to 11 different parts of speech: NUM (84; 29% instances), DET (83; 29% instances), ADP (57; 20% instances), NOUN (35; 12% instances), ADV (8; 3% instances), ADJ (4; 1% instances), PROPN (4; 1% instances), PUNCT (3; 1% instances), VERB (3; 1% instances), CONJ (2; 1% instances), SYM (2; 1% instances)