メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((144.99432626933 43.5596859490905, 144.994197828367 43.559612984431, 144.993697214351 43.5593295663105, 144.993266691751 43.5590861616357, 144.994076081281 43.5583680003051, 144.994140492547 43.5583129757161, 144.994184434554 43.5582841445683, 144.99441898395 43.5587813572534, 144.99432626933 43.5596859490905)) ^^http://www.opengis.net/ont/geosparql#wktLiteral