メタデータ名
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((139.1812500 35.7375000, 139.1875000 35.7375000, 139.1875000 35.7416667, 139.1812500 35.7416667, 139.1812500 35.7375000)) ^^http://www.opengis.net/ont/geosparql#wktLiteral