メタデータ名 C1381
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.1312500 38.9041667, 141.1375000 38.9041667, 141.1375000 38.9083333, 141.1312500 38.9083333, 141.1312500 38.9041667)) ^^http://www.opengis.net/ont/geosparql#wktLiteral