メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((142.480809769536 43.4620792645941, 142.479867510867 43.4625106797538, 142.479789048128 43.4625189964349, 142.479690332585 43.4625012249732, 142.479549001392 43.4624802693705, 142.479347212257 43.4624790559371, 142.4790290556 43.4625352157575, 142.478813065961 43.4626344568302, 142.478661029619 43.4627441883973, 142.478599046112 43.4629549763976, 142.478534568813 43.4631004700988, 142.478393756878 43.4632166845108, 142.477935724252 43.4634278388469, 142.477536359858 43.4629820235556, 142.476679025498 43.4620280519946, 142.477335767858 43.4617072559402, 142.478995298313 43.4609437180177, 142.479575852785 43.4606886774212, 142.480013835432 43.4611981589954, 142.480180426331 43.4613758210882, 142.480445017747 43.4616814925597, 142.480809769536 43.4620792645941)) ^^http://www.opengis.net/ont/geosparql#wktLiteral