メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((144.404032877369 43.0010444076535, 144.404516270979 43.0013650822162, 144.404040117545 43.0017444620283, 144.403999058843 43.001770482609, 144.403486455397 43.0021982293656, 144.403282362091 43.0023241588102, 144.402908676271 43.0019677996733, 144.402503568486 43.001534807311, 144.40206782791 43.0010969048243, 144.402674010584 43.0008847904524, 144.403740521763 43.0005533172951, 144.404032877369 43.0010444076535)) ^^http://www.opengis.net/ont/geosparql#wktLiteral