ExtPos
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The ExtPos feature was introduced in SUD and it is now used in many UD treebanks as well.
Related pages:
The ExtPos feature is used to facilitate the annotation of idioms, titles, and other multi-word units which behave like a certain part of speech, even though none of their constituents necessarily carry that part of speech. This feature allows the annotator to preserve the internal syntactic structure between the components of these units.
See
Idioms and titles for examples.
The usage of ExtPos was also generalized to cases of single tokens which are given a upos but they are used in the syntactic structure with another role.
Naija
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pattern { X [ExtPos] }
X.upos
X.ExtPos
In Naija, it is frenquently used for adjective used as verbs.
Naija
French
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Combination of ExtPos and upos in SUD_French-GSD:
pattern { X [ExtPos] }
X.upos
X.ExtPos
Adverb used as pronoun
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- beaucoup de +
NOUN
- près de +
NOUN
- peu de +
NOUN
French
Noun used as adverbs
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French
Symbols
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Most of the tokens with upos=SYM have an ExtPos feature
pattern { X [upos=SYM] }
X.ExtPos
French