<xs:element minOccurs="0" name="ku"> <xs:complexType> <xs:choice> <xs:element maxOccurs="unbounded" name="ku_p" type="dsip:ku_pType"/> <xs:sequence> <xs:element maxOccurs="unbounded" minOccurs="0" name="ku_z" type="dsip:ku_zType"/> <xs:element maxOccurs="unbounded" minOccurs="0" name="ku_o" type="dsip:ku_oType"/> <xs:element maxOccurs="unbounded" minOccurs="0" name="ku_a" type="dsip:ku_aType"/> <xs:element maxOccurs="unbounded" minOccurs="0" name="ku_r" type="dsip:ku_rType"/> </xs:sequence> </xs:choice> </xs:complexType> </xs:element>