メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((137.049735945297 34.8590053651861, 137.049956777175 34.8591813651906, 137.050377917995 34.8595309518479, 137.049176357182 34.8598234118265, 137.047997667387 34.8601213758002, 137.046826182426 34.8604168684093, 137.046389707593 34.8605248916061, 137.046310405315 34.8605547441256, 137.046195178591 34.8605803353758, 137.04616926092 34.8603581792506, 137.045924628322 34.8597426735729, 137.046286721584 34.8596414080968, 137.046119993831 34.8592663523547, 137.04743229301 34.858937911605, 137.047064980629 34.8585826632098, 137.047428352007 34.8582790515356, 137.047809334685 34.8579657370877, 137.048085567851 34.8577030988432, 137.048504760669 34.8580301539353, 137.049735945297 34.8590053651861)) ^^http://www.opengis.net/ont/geosparql#wktLiteral