メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((144.453707653617 43.0326519508218, 144.453847852516 43.0327335711024, 144.454051867195 43.032883866093, 144.454240826793 43.0330153219496, 144.454778803004 43.0333627042114, 144.454844984309 43.0334707171207, 144.454859131472 43.0335658776791, 144.454829882438 43.0336538588621, 144.454481376826 43.0339070046551, 144.454186995795 43.0340815351151, 144.453394495822 43.0334370700996, 144.452981871039 43.0331151162939, 144.451691806757 43.032034983364, 144.45207330059 43.0319481667359, 144.452379706592 43.0318740483689, 144.453707653617 43.0326519508218)) ^^http://www.opengis.net/ont/geosparql#wktLiteral