メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((144.263148837011 44.020413519869, 144.261095594273 44.0202205045581, 144.261264708074 44.0201556957416, 144.261349329114 44.0200878096861, 144.261254431398 44.0197021811214, 144.261463807741 44.0196984891286, 144.26147968702 44.0196781863405, 144.263250920331 44.019842670766, 144.263148837011 44.020413519869)) ^^http://www.opengis.net/ont/geosparql#wktLiteral