array ( 'CC BY-NC-SA' => 'https://creativecommons.org/licenses/by-nc-sa/4.0/', 'CC BY-NC-ND' => 'https://creativecommons.org/licenses/by-nc-nd/4.0/', 'CC BY-NC' => 'https://creativecommons.org/licenses/by-nc/4.0/', 'CC BY-ND' => 'https://creativecommons.org/licenses/by-nd/4.0/', 'CC BY-SA' => 'https://creativecommons.org/licenses/by-sa/4.0/', 'CC BY' => 'https://creativecommons.org/licenses/by/4.0/', 'CC0' => 'https://creativecommons.org/publicdomain/zero/1.0/', 'RR-F' => 'http://www.europeana.eu/rights/rr-f/', 'RR-P' => 'http://www.europeana.eu/rights/rr-p/', 'RR-R' => 'http://www.europeana.eu/rights/rr-r/', 'Orphan Work' => 'http://www.europeana.eu/rights/orphan-work-eu/', 'Public Domain Mark' => 'https://creativecommons.org/publicdomain/mark/1.0/', ), )