License
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- Attribution 4.0 (CC BY 4.0)405
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- Public Domain Mark 1.036
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- Attribution-NonCommercial-ShareAlike 4.0 (CC BY-NC-SA 4.0)19
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- Attribution-NonCommercial 3.0 United States3
- Attribution-NoDerivatives 4.0 (CC BY-ND 4.0)2
- Attribution-NoDerivs 3.0 United States2
- Apache 2.01