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The UD_Czech-CLTT treebank is based on the Czech Legal Text Treebank 1.0, created at Charles University in Prague.


CLTT is a collection of 1125 manually annotated dependency trees. CLTT consists of two legal documents: The Accounting Act (563/1991 Coll., as amended) and Decree on Double-entry Accounting for undertakers (500/2002 Coll., as amended).

See the following websites for more information on CLTT 1.0:


We wish to thank all of the contributors to the original CLTT annotation effort, including Barbora Hladká, Vincent Kríž and Zdeňka Urešová.


  • Vincent Kríž, Barbora Hladká and Zdeňka Urešová, 2015, Czech Legal Text Treebank, LINDAT/CLARIN digital library at Institute of Formal and Applied Linguistics, Charles University in Prague,


  • 2020-11-15 v2.7
    • Fixed tokenization of "je-li", "není-li" etc.
    • Improved tokenization of multi-word terms.
    • Fixed some annotation errors.
  • 2020-05-01 v2.6
    • Fixed: "to je" is a fixed multi-word expression, as in other Czech treebanks.
    • Genitive, dative and instrumental nominals are now considered oblique.
    • Relative clauses distinguished from other adnominal clauses.
  • 2019-05-01 v2.4
    • Modified conversion: nouns do not have objects.
    • Unknown tag of advmod --> ADV.
    • Fixed punctuation attachment.
  • 2018-11-15 v2.3
    • Added LDeriv for passive participles (the infinitive of the source verb).
  • 2018-04-15 v2.2
    • Added enhanced representation of dependencies propagated across coordination. The distinction of shared and private dependents is derived deterministically from the original Prague annotation.
  • 2017-11-15 UD 2.1
    • Prepositional objects are now “obl:arg” instead of “obj”.
    • Instrumental phrases for demoted agents in passives are now “obl:agent”.
  • 2017-03-01 UD v2 conversion by Martin Popel.
    • No changes since UD release 1.3 to 1.4.

=== Machine-readable metadata (DO NOT REMOVE!) ================================ Data available since: UD v1.3 License: CC BY-SA 4.0 Includes text: yes Genre: legal Lemmas: converted from manual UPOS: converted from manual XPOS: manual native Features: converted from manual Relations: converted from manual Contributors: Hladká, Barbora; Zeman, Daniel; Popel, Martin Contributing: elsewhere Contact:

Original CLTT authors: Kríž, Vincent; Hladká, Barbora; Urešová, Zdeňka