メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((135.722365288441 34.5049124972554, 135.722344828777 34.5043790040364, 135.722687074354 34.5043724584085, 135.722719718525 34.5052481338954, 135.722395300113 34.5052400707241, 135.722365288441 34.5049124972554)) ^^http://www.opengis.net/ont/geosparql#wktLiteral