メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((142.345432597754 43.7720988934932, 142.345632296935 43.7727947301197, 142.345417532021 43.7728131084363, 142.344632553394 43.7728802608323, 142.344536071503 43.7728592280397, 142.34443679216 43.7728949992506, 142.344144439755 43.772987067037, 142.34398226586 43.7730524782028, 142.343763395353 43.772683807501, 142.343550744251 43.7723380732701, 142.343257069374 43.7721147656829, 142.343460202939 43.7718723228932, 142.343614998037 43.7717141986913, 142.343622297723 43.7716844636131, 142.343632721458 43.77167153378, 142.343673880977 43.771646113545, 142.343730427902 43.7716238092664, 142.343784523987 43.7716086278146, 142.343847407798 43.7716051647998, 142.343905537992 43.7715945678096, 142.34428337282 43.7715345658526, 142.344409531678 43.7716503326706, 142.34486487915 43.7715832319812, 142.345300848342 43.7715161459166, 142.345432597754 43.7720988934932)) ^^http://www.opengis.net/ont/geosparql#wktLiteral