denckring-en-pos
Copyright 2026 senzelden

This product includes software developed as part of the denckring project,
licensed under the Apache License, Version 2.0.

It also includes a part-of-speech tagging model trained on the Universal
Dependencies English Web Treebank, licensed under the Creative Commons
Attribution-ShareAlike 4.0 International licence. See LICENSE-UD for the terms
as the treebank itself distributes them.

ATTRIBUTION
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Universal Dependencies English Web Treebank (UD English-EWT) v2.18, released
2026-05-15, https://github.com/UniversalDependencies/UD_English-EWT — built over
the source material of the English Web Treebank, LDC2012T13.

ON SHARE-ALIKE AND THE SHIPPED WEIGHTS
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The file `src/denckring_en_pos/data/tagger.json.gz` is a model trained on the
treebank's annotations. It is treated here as an adapted work under CC BY-SA 4.0
rather than as an independent one: the weights are derived from the annotations,
not merely produced with the help of software that read them, and the whole value
of the table is the annotation it encodes.

Whether a trained model is an adaptation of its training data is a question the
licence does not settle and on which reasonable readings differ. This
distribution takes the reading that imposes the stricter obligation on itself,
which is why the model ships here under share-alike terms in a distribution of
its own rather than inside `denckring-en-data`, whose data carries different
terms. ADR 0013 is the rule being followed; ADR 0045 records this decision.

Recorded rather than assumed, because a licence claim in package metadata is a
claim about somebody else's rights.
