メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((144.991074996049 43.5534364308532, 144.991680981254 43.553831598935, 144.99219206865 43.5541510576245, 144.991995944432 43.5542992518276, 144.991542300447 43.554018389605, 144.990930792544 43.5544346537963, 144.990323285338 43.5540357568294, 144.989964164592 43.5538007533008, 144.989907767581 43.553763923038, 144.990633018576 43.5531183676115, 144.991074996049 43.5534364308532)) ^^http://www.opengis.net/ont/geosparql#wktLiteral