メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((144.607686469394 43.2887425897456, 144.607528941535 43.2898423968523, 144.606701043329 43.2884379474539, 144.606670346177 43.2883859085319, 144.605982326247 43.2872223113983, 144.605945409812 43.2871538036411, 144.604975595225 43.2853529687525, 144.605682275268 43.2851963514207, 144.606062053506 43.2858722102599, 144.606703788243 43.2867103891131, 144.607439910388 43.2875442960809, 144.60747531568 43.2876234535365, 144.60746823386 43.2877191696791, 144.60737819422 43.2880595646561, 144.607393093453 43.288166079194, 144.607686469394 43.2887425897456)) ^^http://www.opengis.net/ont/geosparql#wktLiteral