メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((144.605581464982 43.2919023878235, 144.605608367332 43.2919707510111, 144.604689422058 43.2926607856028, 144.60298765787 43.2914975177698, 144.603371586905 43.2911731562236, 144.603741895912 43.2908551920928, 144.603933110039 43.290691057458, 144.604530725322 43.2901915452359, 144.604674836877 43.290383372664, 144.605192558509 43.2911006959876, 144.605541755455 43.2918015179757, 144.605581464982 43.2919023878235)) ^^http://www.opengis.net/ont/geosparql#wktLiteral