メタデータ名 C2992
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.3500000 34.7541667, 136.3562500 34.7541667, 136.3562500 34.7583333, 136.3500000 34.7583333, 136.3500000 34.7541667)) ^^http://www.opengis.net/ont/geosparql#wktLiteral