メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.34972829619 43.1297115135, 141.350071123608 43.1300105624291, 141.350404914534 43.1303237465058, 141.350632052485 43.1305369321297, 141.35075515855 43.1306414192881, 141.350986600143 43.1308493629378, 141.349530224322 43.1316238512961, 141.349479319925 43.131650879654, 141.349238666581 43.1314098768532, 141.348945564832 43.1311311181757, 141.348573939951 43.1307725530294, 141.348246345634 43.130476079782, 141.347830531097 43.1300997943695, 141.348595716627 43.1296939708664, 141.3492941861 43.1293385355213, 141.34972829619 43.1297115135)) ^^http://www.opengis.net/ont/geosparql#wktLiteral