メタデータ名
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.1312500 38.3958334, 141.1375000 38.3958334, 141.1375000 38.4000000, 141.1312500 38.4000000, 141.1312500 38.3958334)) ^^http://www.opengis.net/ont/geosparql#wktLiteral