Unknown_copyright|I don't know exactly
Free licenses:
- MW-screenshot|MediaWiki screenshot
- PD|PD: public domain
- CC0|CC0 : CC0 1.0 Universal (CC0 1.0) Public Domain Dedication]
- CC BY-SA|CC BY-SA 4.0 : Creative Commons Attribution ShareAlike 4.0
- GPL|GPL : GNU General Public License
- GNU AGPL|GNU AGPL : |GNU Affero General Public License
- LGPL|LGPL: GNU Lesser General Public License
- GFDL|FDL : GNU Free Documentation License
Non-free license (exception):
- CopyrightByWikimedia|Wikimedia images