メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((144.454156327301 43.0380579949457, 144.454329880396 43.0384332194615, 144.454517547023 43.0388277226995, 144.454681606508 43.0392589690459, 144.453545367105 43.0395282121049, 144.453349800635 43.0391057989566, 144.453171806299 43.0387028095228, 144.452996764317 43.0383179070338, 144.452660943667 43.0375606954531, 144.453241636336 43.0374349455472, 144.453827788225 43.0372956540067, 144.454016460333 43.0377452049114, 144.454156327301 43.0380579949457)) ^^http://www.opengis.net/ont/geosparql#wktLiteral