Table 1.

Biomedical ontologies downloaded from the OBO Foundry in May 2015 (http://obo.sourceforge.net)

Ontology	Acronym	Classes	Names	Reference
Cell type	CL	4775	4375	[29]
Foundational model of anatomy	FMA	78977	126190	[30]
Gene ontology (biological process domain)	GO	43048	276577	[1]
Human phenotype	HP	28621	18431	[31]
Mammalian phenotype	MP	28643	29592	[32]
Neuro behaviour ontology	NBO	116710	1168	[33]
Phenotypic quality	PATO	2497	3378	[34]
Uber anatomy ontology	UBERON	18322	50713	[35]
Caenorhabditis elegans phenotype	WBP	2290	2739	[36]