メタデータ名 C3461
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.4812500 34.4208334, 136.4875000 34.4208334, 136.4875000 34.4250000, 136.4812500 34.4250000, 136.4812500 34.4208334)) ^^http://www.opengis.net/ont/geosparql#wktLiteral