メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.904420810106 34.8910112963471, 136.902768548457 34.8910850169187, 136.902751571244 34.8909676373214, 136.902719516391 34.8906669549623, 136.902884590479 34.8906515329456, 136.903154895293 34.8905912590126, 136.903676275096 34.890523704839, 136.904082804172 34.8905016854261, 136.904387709267 34.8904930401354, 136.90441422861 34.8908966851168, 136.904420810106 34.8910112963471)) ^^http://www.opengis.net/ont/geosparql#wktLiteral