This element shows how an element declaration may include a Schematron constraint to limit the property to act in either inline or by-reference mode, but not both.
<element name="abstractStrictAssociationRole" type="gml:AssociationRoleType" abstract="true"><annotation><documentation>This element shows how an element declaration may include a Schematron constraint to limit the property to act in either inline or by-reference mode, but not both.</documentation></annotation></element>