<n0:ComplexDefinition xmlns:n0="http://ncicb.nci.nih.gov/xml/owl/EVS/ComplexProperties.xsd#"><n0:def-definition>A property created to allow the source CDRH to assign a parent to each concept with the intent of creating a hierarchy that includes only terms in which they are the contributing source.</n0:def-definition><n0:def-source>NCI</n0:def-source></n0:ComplexDefinition>