<xs:complexType name="BuildingInstallationPropertyType">
	<xs:annotation>
		<xs:documentation>Denotes the relation of an _AbstractBuilding to its building installations. The
			BuildingInstallationPropertyType element must either carry a reference to a BuildingInstallation object or contain a
			BuildingInstallation object inline, but neither both nor none. </xs:documentation>
	</xs:annotation>
	<xs:sequence minOccurs="0">
		<xs:element ref="BuildingInstallation"/>
	</xs:sequence>
	<xs:attributeGroup ref="gml:AssociationAttributeGroup"/>
</xs:complexType>