id	domain	url
grbs-16284	creativecommons.org	https://creativecommons.org/licenses/by/4.0
grbs-16284	www.homermultitext.org	http://www.homermultitext.org/iipsrv?iiif=/project/homer
grbs-16284	commons.wikimedia.org	https://commons.wikimedia.org/w/index.php?curid