Systems Biology Ontology	Sleep Domain Ontology	Source
http://mimi.case.edu/ontologies/2009/1/SDO.owl#PhysicalLength	http://biomodels.net/SBO/SBO_0000466	LOOM
http://mimi.case.edu/ontologies/2009/1/SDO.owl#Pressure	http://biomodels.net/SBO/SBO_0000279	LOOM
http://www.ifomis.org/bfo/1.1/snap#MaterialEntity	http://biomodels.net/SBO/SBO_0000240	LOOM
http://mimi.case.edu/ontologies/2009/1/SDO.owl#Amplitude	http://biomodels.net/SBO/SBO_0000492	LOOM
http://www.ifomis.org/bfo/1.1/span#Process	http://biomodels.net/SBO/SBO_0000375	LOOM
http://purl.obolibrary.org/obo/OGMS_0000023	http://biomodels.net/SBO/SBO_0000358	LOOM