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This page pertains to UD version 2.

UD English Atis

Language: English (code: en)
Family: Indo-European, Germanic

This treebank has been part of Universal Dependencies since the UD v2.9 release.

The following people have contributed to making this treebank part of UD: Aslı Kuzgun, Neslihan Cesur, Olcay Taner Yıldız.

Repository: UD_English-Atis
Search this treebank on-line: PML-TQ
Download all treebanks: UD 2.14

License: CC BY-SA 4.0

Genre: nonfiction, news

Questions, comments? General annotation questions (either English-specific or cross-linguistic) can be raised in the main UD issue tracker. You can report bugs in this treebank in the treebank-specific issue tracker on Github. If you want to collaborate, please contact [kuzgunasli (æt) gmail • com]. Development of the treebank happens directly in the UD repository, so you may submit bug fixes as pull requests against the dev branch.

Annotation Source
Lemmas annotated manually
UPOS annotated manually, natively in UD style
XPOS not available
Features annotated manually in non-UD style, automatically converted to UD
Relations annotated manually, natively in UD style


UD Atis Treebank is a manually annotated treebank consisting of the sentences in the Atis (Airline Travel Informations) dataset which includes the human speech transcriptions of people asking for flight information on the automated inquiry systems.

UD Atis Treebank is manually annoated over the Atis data. The data is split into 4224 training, 586 test, and 572 development items.


We thank the Starlang Software for funding and supporting this work.


The ATIS corpus: https://github.com/howl-anderson/ATIS_dataset/blob/master/README.en-US.md

Statistics of UD English Atis

POS Tags






Tokenization and Word Segmentation



Nominal Features

Degree and Polarity

Verbal Features

Pronouns, Determiners, Quantifiers

Other Features


Auxiliary Verbs and Copula

Core Arguments, Oblique Arguments and Adjuncts

Here we consider only relations between verbs (parent) and nouns or pronouns (child).

Relations Overview