メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.755638556871 35.4328915394651, 136.755635039727 35.4329320535696, 136.755582943171 35.4333727699536, 136.754751411491 35.4334478079524, 136.754709943033 35.4337433903221, 136.754382622623 35.4337052074019, 136.753975098846 35.4336696038246, 136.753965922659 35.4334271927107, 136.75382087945 35.4328235680276, 136.754130990771 35.432827470169, 136.754958789885 35.4309796701458, 136.755666859554 35.4310942351991, 136.755837531346 35.4311166402805, 136.755638556871 35.4328915394651)) ^^http://www.opengis.net/ont/geosparql#wktLiteral