メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((140.945941247956 38.171440933127, 140.945929746568 38.1712660985744, 140.946048077182 38.1712317796018, 140.946241298059 38.1711317890321, 140.946294932021 38.1710995013225, 140.946499841389 38.1707750998003, 140.946721281168 38.1705693554122, 140.947145338508 38.17045478036, 140.947521302773 38.1704086681569, 140.947859589098 38.170941186152, 140.947316734519 38.1711856737816, 140.947405051794 38.1714228000195, 140.946987882098 38.171554543643, 140.945941490404 38.1715986037124, 140.945941247956 38.171440933127)) ^^http://www.opengis.net/ont/geosparql#wktLiteral