メタデータ名 G20493350281
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.3500000 39.4916667, 141.3562500 39.4916667, 141.3562500 39.4958334, 141.3500000 39.4958334, 141.3500000 39.4916667)) ^^http://www.opengis.net/ont/geosparql#wktLiteral