<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema"><xs:element name="WUWDR"> <xs:complexType> <xs:all> <xs:element ref="leaseNumber" minOccurs="1" maxOccurs="1"/> <xs:element ref="dlsChecksum" minOccurs="1" maxOccurs="1"/> <xs:element ref="principalBalance" minOccurs="1" maxOccurs="1"/> </xs:all> </xs:complexType> </xs:element> <xs:element name="leaseNumber"/> <xs:element name="dlsChecksum"/> <xs:element name="principalBalance"/> </xs:schema>