メタデータ名 C12228-19900601
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((139.1187500 37.9375000, 139.1250000 37.9375000, 139.1250000 37.9416667, 139.1187500 37.9416667, 139.1187500 37.9375000)) ^^http://www.opengis.net/ont/geosparql#wktLiteral