メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((131.403001302297 34.0853055087529, 131.403546633021 34.0852705703667, 131.403607661333 34.0855074688714, 131.403773057762 34.0858501063331, 131.403876480675 34.0860610656115, 131.40389021125 34.0861346847249, 131.40409030942 34.0872048519487, 131.404335233888 34.0885153417755, 131.404586955591 34.089861652598, 131.404639949999 34.0901451313665, 131.403921100529 34.0902483099006, 131.403862773555 34.0899649393223, 131.403644188064 34.0885971374057, 131.403431623182 34.0872665619148, 131.403175758909 34.0861005378992, 131.403001302297 34.0853055087529)) ^^http://www.opengis.net/ont/geosparql#wktLiteral