メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((135.2447933623 34.7154167842148, 135.244820941139 34.7154255175429, 135.245284784708 34.7155682493866, 135.24515425218 34.715859952599, 135.245061134295 34.7160792574981, 135.244829095888 34.7165722985121, 135.24436071108 34.7164203020301, 135.243766344347 34.7162286801284, 135.243987397782 34.7157289623152, 135.244222168093 34.715235902408, 135.2447933623 34.7154167842148)) ^^http://www.opengis.net/ont/geosparql#wktLiteral