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This page pertains to UD version 2.

UD Dutch LassySmall

Language: Dutch (code: nl)
Family: Indo-European, Germanic

This treebank has been part of Universal Dependencies since the UD v1.3 release.

The following people have contributed to making this treebank part of UD: Gosse Bouma, Gertjan van Noord.

Repository: UD_Dutch-LassySmall
Search this treebank on-line: PML-TQ
Download all treebanks: UD 2.14

License: CC BY-SA 4.0

Genre: wiki

Questions, comments? General annotation questions (either Dutch-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 [g • bouma (æt) rug • nl]. Development of the treebank happens outside the UD repository. If there are bugs, either the original data source or the conversion procedure must be fixed. Do not submit pull requests against the UD repository.

Annotation Source
Lemmas annotated manually in non-UD style, automatically converted to UD
UPOS annotated manually in non-UD style, automatically converted to UD
XPOS annotated manually
Features annotated manually in non-UD style, automatically converted to UD
Relations annotated manually in non-UD style, automatically converted to UD


This corpus contains sentences from the Wikipedia section of the Lassy Small Treebank. Universal Dependency annotation was generated automatically from the original annotation in Lassy.

The Lassy Small Treebank (https://www.let.rug.nl/~vannoord/Lassy/) is a manually verified treebank for Dutch, annotated with both phrasal nodes and dependency labels (as in the German Tiger treebanks and as in earlier treebank efforts for Dutch). The annotation was converted automatically to UD. The (Go and XQuery) conversion script is available for download at https://github.com/rug-compling/alud. It can be used to convert additional material annotated according to Lassy/CGN guidelines or annotated automatically using the Alpino parser.

As not all material in the Lassy Small Treebank can be made freely available, only the material from the Wikipedia (wiki) section is included in UD_Dutch-LassySmall. The train, development, and test sections consist of 6641, 350, and 350 sentences, respectively, taken from a random shuffle of the original dataset.


Gosse Bouma is responsible for the conversion. Gertjan van Noord helped in sorting out various issues with the original data.

Statistics of UD Dutch LassySmall

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).

Reflexive Verbs

Verbs with Reflexive Core Objects

Relations Overview