メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((142.83379236228 43.07917619307, 142.832887684078 43.0790276305125, 142.831879987022 43.0788103787024, 142.831827447989 43.0787990421567, 142.831272295396 43.0786802650747, 142.830812978273 43.0785850507385, 142.831219058308 43.077590204118, 142.831255018884 43.0775021787883, 142.831450703945 43.0769960707885, 142.832835434621 43.0773112038655, 142.834409217357 43.077639697962, 142.834186000087 43.0781993320008, 142.83379236228 43.07917619307)) ^^http://www.opengis.net/ont/geosparql#wktLiteral