メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((142.340927283624 43.8191264415895, 142.340551248037 43.819396820692, 142.340137498358 43.819694301197, 142.339102104619 43.8189295899231, 142.338499841263 43.8184965948623, 142.339729646025 43.8175998477841, 142.339745761761 43.8176118247066, 142.339771065098 43.8175912718238, 142.340366770564 43.817984903685, 142.340721304467 43.8182191635622, 142.341437813185 43.81872097203, 142.341449661585 43.8187302103725, 142.341463434097 43.8187409404715, 142.341152921555 43.8189642087571, 142.340927283624 43.8191264415895)) ^^http://www.opengis.net/ont/geosparql#wktLiteral