メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((143.35515259474 44.3553170838152, 143.354564959984 44.3555305118549, 143.354636786623 44.3556342675217, 143.353484428177 44.3560657467153, 143.353472784385 44.3559466412502, 143.353450818398 44.3558884586577, 143.353425037527 44.3559038604826, 143.353099733665 44.3560589517093, 143.35294052705 44.3558004695045, 143.35254927649 44.3553499143649, 143.353131121251 44.3551201705242, 143.352885341893 44.3545303967818, 143.353672781972 44.35426396305, 143.354283660308 44.3540572754971, 143.35515259474 44.3553170838152)) ^^http://www.opengis.net/ont/geosparql#wktLiteral