メタデータ名 householdMemberAge-under12
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((132.7937500 33.9416667, 132.8000000 33.9416667, 132.8000000 33.9458334, 132.7937500 33.9458334, 132.7937500 33.9416667)) ^^http://www.opengis.net/ont/geosparql#wktLiteral