メタデータ名 S231011370
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.3937500 38.9000000, 141.4000000 38.9000000, 141.4000000 38.9041667, 141.3937500 38.9041667, 141.3937500 38.9000000)) ^^http://www.opengis.net/ont/geosparql#wktLiteral