メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((144.405358269732 43.0006252021963, 144.405923179843 43.0009807662673, 144.406443023593 43.0013077788937, 144.406470423552 43.0013240713833, 144.405596998497 43.002042044987, 144.40506655252 43.0016858320767, 144.404516270979 43.0013650822162, 144.404032877369 43.0010444076535, 144.403740521763 43.0005533172951, 144.404778148033 43.0002180891319, 144.405358269732 43.0006252021963)) ^^http://www.opengis.net/ont/geosparql#wktLiteral