メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.924997052132 35.1378628155099, 136.925012533297 35.1381511670893, 136.925048999856 35.1388307014075, 136.925072184982 35.1392830882494, 136.923878866109 35.1392721432088, 136.923870365924 35.1391755023802, 136.923846200249 35.1387885390031, 136.92376651683 35.138158354123, 136.923806076341 35.1381390681542, 136.923811316928 35.137961678159, 136.924022689903 35.1379183750392, 136.924413531391 35.1378788157397, 136.924997052132 35.1378628155099)) ^^http://www.opengis.net/ont/geosparql#wktLiteral