メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.911390672409 34.8929550758934, 136.911776763736 34.8929299600291, 136.91172875491 34.89371632925, 136.911670302789 34.8945214121805, 136.911650960418 34.8949298906599, 136.911099550359 34.8949658616426, 136.911124076239 34.8954030010922, 136.910334821324 34.8954160061495, 136.909556141966 34.8954501567099, 136.909045016349 34.8954706328338, 136.908475196374 34.8954819687998, 136.908000944918 34.8927008098954, 136.908580650419 34.8926592788027, 136.909319935407 34.8926173761202, 136.911347589973 34.8924923030089, 136.911390672409 34.8929550758934)) ^^http://www.opengis.net/ont/geosparql#wktLiteral