メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.629140664814 34.9020824892521, 136.630070317401 34.9018598443096, 136.630426214926 34.9028364219142, 136.630704137348 34.9035989415311, 136.63069418184 34.903599486193, 136.629700244939 34.903657591066, 136.628070071461 34.9037214349595, 136.627178872258 34.9037608178915, 136.626785079531 34.9026649739581, 136.626430626046 34.9016869691569, 136.626992224151 34.9015536432287, 136.627333095453 34.902515024779, 136.627933432347 34.9023773399259, 136.628545534378 34.9022353660871, 136.629140664814 34.9020824892521)) ^^http://www.opengis.net/ont/geosparql#wktLiteral