<simpleType name="NullEnumeration?">
<restriction base="string"> <enumeration value="inapplicable"/> <enumeration value="missing"/> <enumeration value="template"/> <enumeration value="unknown"/> <enumeration value="withheld"/> </restriction></simpleType> <simpleType name="NullType">
<union memberTypes="gml:NullEnumeration? anyURI"/></simpleType>