メタデータ名
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.9062500 37.0708334, 136.9125000 37.0708334, 136.9125000 37.0750000, 136.9062500 37.0750000, 136.9062500 37.0708334)) ^^http://www.opengis.net/ont/geosparql#wktLiteral