<n0:ComplexDefinition xmlns:n0="http://ncicb.nci.nih.gov/xml/owl/EVS/ComplexProperties.xsd#"><n0:def-definition>A role used to indicate that a conceptual entity is a sub-entity of another conceptual entity. Both the domain and the range for this role are 'Conceptual Entity'.</n0:def-definition><n0:def-source>NCI</n0:def-source></n0:ComplexDefinition>