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This page pertains to UD version 2.

UD Tamil TTB

Language: Tamil (code: ta)
Family: Dravidian

This treebank has been part of Universal Dependencies since the UD v1.2 release.

The following people have contributed to making this treebank part of UD: Loganathan Ramasamy, Daniel Zeman.

Repository: UD_Tamil-TTB
Search this treebank on-line: PML-TQ
Download all treebanks: UD 2.14

License: CC BY-NC-SA 3.0

Genre: news

Questions, comments? General annotation questions (either Tamil-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 [zeman (æt) ufal • mff • cuni • cz]. 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


The UD Tamil treebank is based on the Tamil Dependency Treebank created at the Charles University in Prague by Loganathan Ramasamy.

The treebank was part of HamleDT, a collection of treebanks converted to the Prague dependency style (since 2011). Later versions of HamleDT added a conversion to the Stanford dependencies (2014) and to Universal Dependencies (HamleDT 3.0, 2015). The first release of Universal Dependencies that includes this treebank is UD v1.2 in November 2015. It is essentially the HamleDT conversion but the data is not identical to HamleDT 3.0 because the conversion procedure has been further improved.


author = {Ramasamy, Loganathan and \v{Z}abokrtsk\'{y}, Zden\v{e}k},
year = {2012},
title = {Prague Dependency Style Treebank for {Tamil}},
booktitle = {Proceedings of Eighth International Conference on Language Resources and Evaluation ({LREC} 2012)},
address = {\.{I}stanbul, Turkey},
editor = {Nicoletta Calzolari (Conference Chair) and Khalid Choukri and Thierry Declerck and Mehmet Uğur Doğan and Bente Maegaard and Joseph Mariani and Asuncion Moreno and Jan Odijk and Stelios Piperidis},
isbn = {978-2-9517408-7-7},
pages = {1888--1894},
url = {http://www.lrec-conf.org/proceedings/lrec2012/summaries/456.html}


Statistics of UD Tamil TTB

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