メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.587905216863 35.3766041040866, 136.587869265351 35.3776440745357, 136.586508237885 35.3776280577076, 136.58578449498 35.3776147641274, 136.585788294606 35.3765716145937, 136.585811811938 35.3760030675324, 136.585378263226 35.3760055447015, 136.585383730591 35.375490430826, 136.585825609126 35.3755008808959, 136.586225344103 35.3755134493231, 136.58663900435 35.3755384781475, 136.587885053792 35.3755360450255, 136.587963920174 35.3755382562335, 136.587905216863 35.3766041040866)) ^^http://www.opengis.net/ont/geosparql#wktLiteral