メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((144.12674055222 42.9711514597186, 144.126694999227 42.9712029840499, 144.126179835046 42.9717223008827, 144.12599601931 42.9719135151231, 144.125806748063 42.9721332309023, 144.125590870821 42.9720006129904, 144.124278225211 42.9712249438673, 144.123217951725 42.9705970386541, 144.123961116047 42.96975140308, 144.123766024935 42.9695838389659, 144.124502076878 42.9686686915294, 144.125470963223 42.9691325280907, 144.126783089352 42.9696716756552, 144.127713133416 42.9700539167297, 144.12674055222 42.9711514597186)) ^^http://www.opengis.net/ont/geosparql#wktLiteral