Code: Apache License 2.0
Data (data/*.json): Creative Commons Attribution 4.0 International (CC BY 4.0)
Documentation: Creative Commons Attribution 4.0 International (CC BY 4.0)

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Apache License
Version 2.0, January 2004
http://www.apache.org/licenses/

TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION

... (Standard Apache 2.0 terms apply to code files)

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Creative Commons Attribution 4.0 International Public License

... (Standard CC BY 4.0 terms apply to data and docs)