メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((139.017668525063 37.9108643223837, 139.016955827846 37.9116973632034, 139.016435139765 37.9114410148351, 139.016012510727 37.9114462372648, 139.016074122031 37.9112802653983, 139.016127684027 37.9111574081241, 139.016151413666 37.9109616134658, 139.016149696189 37.9107162348179, 139.016152132033 37.9104675979699, 139.01638220113 37.9104599772094, 139.016570184197 37.9104566231436, 139.016778089904 37.9104496605885, 139.016841549595 37.9104524811728, 139.017149114803 37.9106124763323, 139.017828366366 37.9097694437721, 139.018340017578 37.9100304716692, 139.017668525063 37.9108643223837)) ^^http://www.opengis.net/ont/geosparql#wktLiteral