<n0:ComplexDefinition xmlns:n0="http://ncicb.nci.nih.gov/xml/owl/EVS/ComplexProperties.xsd#"><n0:def-definition>A role used to indicate that an anatomic structure has a physical association with a broader system or organ. Both the domain and range for this role are 'Anatomic Structure, System, or Substance'.</n0:def-definition><n0:def-source>NCI</n0:def-source></n0:ComplexDefinition>