メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((131.655441639329 33.2502564051552, 131.656800879135 33.2504230734106, 131.656714924189 33.2509575247993, 131.656585410342 33.251676109807, 131.656180253816 33.2516152605332, 131.655204982754 33.2514818503268, 131.654346943252 33.2513843612146, 131.653809766481 33.2513103362792, 131.653005682531 33.2512188253629, 131.653273455233 33.2497438443856, 131.654059543404 33.249835450058, 131.655441639329 33.2502564051552)) ^^http://www.opengis.net/ont/geosparql#wktLiteral