メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((144.279288840108 44.0212376356352, 144.279264907059 44.0212554738297, 144.279006718151 44.0214478645583, 144.279002778981 44.0214457402724, 144.278836916469 44.0213711822961, 144.278589214323 44.0212856818469, 144.278212572559 44.0212024802888, 144.278643034965 44.020784058825, 144.279667797432 44.0209161860015, 144.279696354625 44.0209330346814, 144.27937736685 44.0211710066672, 144.279328739951 44.0212079242982, 144.279288840108 44.0212376356352)) ^^http://www.opengis.net/ont/geosparql#wktLiteral