# License and rights notice

This repository contains material under several different rights regimes. No
single license applies to every field or file.

## Project-authored material

To the extent the dataset authors hold copyright or database rights in the
original probes, annotations, documentation, and selection/arrangement of this
dataset, those rights are licensed under the **Creative Commons
Attribution-NonCommercial 4.0 International license (CC BY-NC 4.0)**:

https://creativecommons.org/licenses/by-nc/4.0/

This grant does not extend to third-party source documents or excerpts.

## Third-party documents

Each released document retains the license or public-domain status recorded in
its row and in ATTRIBUTION.md. In particular, the medical documents are CC
BY-NC 4.0, the included arXiv documents are CC BY 4.0, and U.S. judicial
opinions are identified as public-domain government edicts. Required
attribution and modification notices must be preserved.

## Short source-derived excerpts

Fields such as `raw_knowledge_statement` can contain short excerpts or close
source-derived statements. Where no affirmative redistribution license exists,
they are included for nonprofit research, evaluation, criticism, and
reproducibility under an asserted copyright exception/fair-use rationale. They
are not relicensed under CC BY-NC 4.0, and no permission is granted beyond the
rights the dataset authors can lawfully grant.

Users are responsible for determining whether their use complies with all
applicable licenses and laws. This notice is not legal advice.