メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.797777478589 43.2088358289312, 141.79775618598 43.2093454215265, 141.797742033925 43.2096751396842, 141.797718200339 43.2101311999892, 141.797708305784 43.2106793781016, 141.79745694524 43.2106184707124, 141.796527692877 43.2103835030498, 141.796503290376 43.2101200249068, 141.796505343003 43.2098415984268, 141.796509007176 43.2097221723831, 141.796520717996 43.2093405635023, 141.796512000543 43.2089971107783, 141.796511499198 43.2089773094818, 141.796507118898 43.2088050919586, 141.796522915458 43.2078099261727, 141.797094588327 43.2077495119689, 141.7977978967 43.2076537446475, 141.797791820658 43.2084803698383, 141.797777478589 43.2088358289312)) ^^http://www.opengis.net/ont/geosparql#wktLiteral