メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.363236414888 43.0581081969023, 141.36330313388 43.0581172236217, 141.363689476636 43.0581692359236, 141.363414178512 43.0593039152144, 141.362605005508 43.0591950332952, 141.362154712458 43.0591343625813, 141.361829916943 43.059090559271, 141.361903001792 43.058794995787, 141.361922604677 43.0587157168354, 141.361972919623 43.0585122925448, 141.362114486093 43.0579402016764, 141.362495757339 43.0579979454961, 141.362899041836 43.0580589536312, 141.363236414888 43.0581081969023)) ^^http://www.opengis.net/ont/geosparql#wktLiteral