メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.606166050422 36.592974103267, 136.605315791395 36.5934165418344, 136.605237993713 36.5933269743612, 136.605846453419 36.5929010679386, 136.605851031643 36.5927396510339, 136.605981625527 36.5927427290592, 136.606166050422 36.592974103267)) ^^http://www.opengis.net/ont/geosparql#wktLiteral