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This page pertains to UD version 2.

UD Wolof WTB

Language: Wolof (code: wo)
Family: Niger-Congo, Northern Atlantic

This treebank has been part of Universal Dependencies since the UD v2.4 release.

The following people have contributed to making this treebank part of UD: Bamba Dione.

Repository: UD_Wolof-WTB
Search this treebank on-line: PML-TQ
Download all treebanks: UD 2.13

License: CC BY-SA 4.0

Genre: bible, wiki

Questions, comments? General annotation questions (either Wolof-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 [dione • bamba (æt) uib • no]. 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, natively in UD style
Relations annotated manually, natively in UD style


UD_Wolof-WTB is a natively manual developed treebank for Wolof. Sentences were collected from encyclopedic, fictional, biographical, religious texts and news.

UD_Wolof-WTB was developed 2018-2019 at the University of Bergen. The treebank contains around 43,000 tokens taken from a variety of genres (encyclopedic, informative, narrative, didactic, and expository). UD_Wolof-WTB is annotated for POS tag, morphological information and dependency relations. As the language shows complex interaction between morphology and cliticization, clitics have been segmented manually.

The treebank contains articles taken from the following sources: OSAD (http://www.osad-sn.com): 6 articles (6269 tokens) Wolof Online http://www.wolof-online.com: 18 articles (12988 tokens) Wolof Wikipedia (https://wo.wikipedia.org): 12 articles (9232 tokens) Xibaaryi.com (http://www.xibaaryi.com): 17 articles (15095 tokens) For each of the four sources, one half of the documents were assigned to the training corpus. Likewise, 1/4 of the documents from each source was respectively assigned to the development and the test corpus. The data split was done with caution with the aim to preserve contiguous texts in the different splits and also to keep a balance of genres in each of the splits.


The treebank is developed by Cheikh Bamba Dione. The syntactic annotation was checked and corrected manually. We wish to thank Arame Fal, Cheikh Alioune Ndao and Tamsir Anne for kindly giving permission to use their data.

Statistics of UD Wolof WTB

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).

Verbs with Reflexive Core Objects

Relations Overview