メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((142.389019060834 43.8103595077488, 142.389492057391 43.810012020895, 142.390014547005 43.8096608329038, 142.39038067392 43.8099388649868, 142.391637331968 43.8108548596812, 142.391151720607 43.8112197521727, 142.390695014413 43.8115576405737, 142.390184543617 43.8119225611924, 142.389700931135 43.8122619725782, 142.389209095189 43.8126373626828, 142.388381647957 43.8120221840045, 142.387555855792 43.811434017179, 142.38806393258 43.8110535164108, 142.388533060642 43.8107164135923, 142.388587601599 43.8106831390271, 142.389019060834 43.8103595077488)) ^^http://www.opengis.net/ont/geosparql#wktLiteral