メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((138.233945079567 37.0307786403193, 138.233308628488 37.03106988092, 138.23290102217 37.0312586330685, 138.230903627354 37.0321679577216, 138.230840006251 37.0321926656402, 138.230343270146 37.031392519811, 138.229808337326 37.0307246445445, 138.229444987602 37.0303801772144, 138.229059037002 37.0300895781154, 138.228746221667 37.0299196138902, 138.230484878308 37.0291517372736, 138.231175640142 37.0288385518814, 138.232235007528 37.0283582313769, 138.232483267433 37.028701659746, 138.233119828616 37.0295944143462, 138.233465243601 37.0300861216332, 138.233945079567 37.0307786403193)) ^^http://www.opengis.net/ont/geosparql#wktLiteral