メタデータ名 C1351
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((140.4062500 39.4875000, 140.4125000 39.4875000, 140.4125000 39.4916667, 140.4062500 39.4916667, 140.4062500 39.4875000)) ^^http://www.opengis.net/ont/geosparql#wktLiteral