メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((139.231390220601 37.7384864304309, 139.230338190097 37.737321193779, 139.229359296971 37.7362123738932, 139.22869527265 37.7354331517013, 139.227758508117 37.7343660132793, 139.228320885415 37.7345145827616, 139.22847218278 37.7345189963462, 139.229530409544 37.7344262781908, 139.230414242586 37.7343377293492, 139.230566122628 37.7343065168673, 139.230654631452 37.7342758383497, 139.230680281397 37.733918081231, 139.231129744523 37.7337787258941, 139.231605345049 37.7334611380701, 139.231923131627 37.7333594418426, 139.231878462376 37.7332724976247, 139.231757186564 37.733068217615, 139.231406485422 37.733154753584, 139.230718123719 37.7329830211009, 139.230775872819 37.7311235701025, 139.233251330898 37.7316649778379, 139.235934102287 37.7322771163402, 139.235542063567 37.73583655478, 139.235875846092 37.7369713228938, 139.233285713891 37.7374166163588, 139.233301608 37.7376395241401, 139.233033999399 37.7375665749722, 139.231390220601 37.7384864304309)) ^^http://www.opengis.net/ont/geosparql#wktLiteral