メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.35567332585 43.2481933679332, 141.35500310267 43.2477542880689, 141.355647028494 43.2472350245014, 141.356322381357 43.2476850418475, 141.35567332585 43.2481933679332)) ^^http://www.opengis.net/ont/geosparql#wktLiteral