メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((134.385699166546 34.754694682394, 134.383900777459 34.7554468941512, 134.383149096126 34.7542481933239, 134.384048413448 34.7538649729066, 134.385013846536 34.7534597476891, 134.385234721725 34.7538236442535, 134.38567030769 34.7546434206319, 134.38568333177 34.7546679247371, 134.385699166546 34.754694682394)) ^^http://www.opengis.net/ont/geosparql#wktLiteral