TriBee reader dictionary sources and changes

English: the bounded passage lexicon uses WordNet 3.0 and original grammatical glosses.
The full WordNet notice is preserved at /reader-wordnet-LICENSE.txt.

Korean: reviewed Mongolian focus definitions and grammatical notes are original
TriBee learning material. Additional senses were checked against the English
Wiktionary contributors' Korean entries, extracted by Wiktextract/Kaikki.org:
https://kaikki.org/dictionary/Korean/
https://en.wiktionary.org/wiki/Wiktionary:Copyrights
https://creativecommons.org/licenses/by-sa/4.0/
Changes: selected the words in these passages, mapped inflected forms with Kiwi,
reviewed and translated senses into Mongolian, added contextual disambiguation.
The derived supplemental lexicon is available as /reader-kr-cn-support.js and
is shared under CC BY-SA 4.0. Wiktionary page histories identify contributors.
This license applies to the derived dictionary data, not the entire application.

Chinese: supplemental senses were checked against CC-CEDICT, edited by its
contributors and distributed by MDBG:
https://www.mdbg.net/chinese/dictionary?page=cc-cedict
https://cc-cedict.org/
https://creativecommons.org/licenses/by-sa/4.0/
Changes: selected actual passage tokens, reviewed and translated senses into
Mongolian, added contextual grammar/phrase definitions, and corrected readings.
The derived supplemental lexicon in /reader-kr-cn-support.js is CC BY-SA 4.0.
Original focus definitions/examples are separately authored TriBee learning material.

Build-time utilities: Kiwi/kiwipiepy (LGPL-3.0), jieba (MIT), pypinyin (MIT),
OpenCC (Apache-2.0). Their models and Python packages are not shipped in the Site.
https://github.com/bab2min/kiwipiepy
https://github.com/fxsjy/jieba
https://github.com/mozillazg/python-pinyin
https://github.com/BYVoid/OpenCC

Learning passages are original graded adaptations and thematic essays, with
authors/source links shown below each reading. They are not official exam papers.
Audio provenance is documented in reader-audio-attribution.md in the source.