メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.915299318748 43.2502384116287, 141.915293107263 43.2505244861346, 141.915271214893 43.2515580249725, 141.915918716762 43.2515668717273, 141.91590835424 43.2517757151517, 141.915673076279 43.2517754074329, 141.914499552755 43.2515123254193, 141.914365394494 43.2514822696805, 141.914182895544 43.2516281777152, 141.913532340226 43.2511502273166, 141.913011202285 43.250747957802, 141.912667440268 43.2504883909717, 141.912452056811 43.2503257459218, 141.913240016243 43.2497643691951, 141.914587220198 43.2488044027445, 141.915131358007 43.2484207513567, 141.915341259421 43.2484314689201, 141.915315610235 43.2498093910136, 141.915299318748 43.2502384116287)) ^^http://www.opengis.net/ont/geosparql#wktLiteral