メタデータ名 A6101
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((137.6937500 34.8000000, 137.7000000 34.8000000, 137.7000000 34.8041667, 137.6937500 34.8041667, 137.6937500 34.8000000)) ^^http://www.opengis.net/ont/geosparql#wktLiteral