メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.354764904174 43.098871743863, 141.355313088831 43.0989379137425, 141.355947969219 43.0990217061311, 141.355786197292 43.0996450212149, 141.355655854959 43.1001595748175, 141.355302990889 43.1001114593134, 141.355028044958 43.1000773135745, 141.35486083851 43.1000524479622, 141.354486203706 43.1000033162858, 141.354399121299 43.0999925086594, 141.353849208726 43.0999192192829, 141.354025058201 43.0992006501558, 141.354120292031 43.0987842821038, 141.354764904174 43.098871743863)) ^^http://www.opengis.net/ont/geosparql#wktLiteral