Head and Neck Cancer Ontology	ecosim ontology	Source
http://purl.obolibrary.org/obo/ECOSIMCONCEPT_MaterialEntity	http://www.ifomis.org/bfo/1.1/snap#MaterialEntity	LOOM
http://purl.obolibrary.org/obo/ECOSIMCONCEPT_Context	http://ontology.lst.tfo.upm.es/BD2D#CONTEXT	LOOM