メタデータ名 householdMemberAge
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((139.8000000 37.5958334, 139.8062500 37.5958334, 139.8062500 37.6000000, 139.8000000 37.6000000, 139.8000000 37.5958334)) ^^http://www.opengis.net/ont/geosparql#wktLiteral