メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.692469601323 35.44032836916, 136.692436739256 35.4403286582859, 136.691920858289 35.4403189190984, 136.691690018735 35.4403145604964, 136.690621917534 35.4402922901634, 136.690573611587 35.4392379930462, 136.692623786739 35.4393188379943, 136.69320029029 35.4393490227228, 136.694461336787 35.4393568826161, 136.694913800179 35.4393661507765, 136.693787338261 35.4399969995914, 136.693233263989 35.4402647457801, 136.692773888556 35.4403256874374, 136.692469601323 35.44032836916)) ^^http://www.opengis.net/ont/geosparql#wktLiteral