メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((131.760896245917 33.235833030042, 131.760880875157 33.2363723291871, 131.760862310188 33.2370266834016, 131.760834256578 33.2379209966832, 131.759607642762 33.2377522635221, 131.759607251867 33.2377845124471, 131.758376354892 33.2376242460062, 131.758390342494 33.2367581241655, 131.75837113872 33.2364363966214, 131.75838209205 33.2361123342857, 131.758399661767 33.2355931713149, 131.758415105202 33.2351382851404, 131.759643429346 33.2351308026467, 131.760918265136 33.2351803812875, 131.760896245917 33.235833030042)) ^^http://www.opengis.net/ont/geosparql#wktLiteral