メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.215596782208 35.220775725186, 136.215662462047 35.2207853982221, 136.21572444334 35.2207520489243, 136.21582397453 35.2209124407018, 136.21605993497 35.2211979474112, 136.215125225992 35.2216794607574, 136.214903624367 35.2214036464056, 136.214757458531 35.221213968962, 136.214674776137 35.2210965756947, 136.215466378394 35.2206800362264, 136.215596782208 35.220775725186)) ^^http://www.opengis.net/ont/geosparql#wktLiteral