Comparative Data Analysis Ontology GEneral Multilingual Environmental Thesaurus Source
http://purl.obolibrary.org/obo/CDAO_0000110 http://www.eionet.europa.eu/gemet/concept/8664 LOOM
http://purl.obolibrary.org/obo/CDAO_0000045 http://www.eionet.europa.eu/gemet/concept/8047 LOOM