メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((143.531114364366 44.0598756844954, 143.530154814637 44.060155211865, 143.529783480932 44.0602683412468, 143.529463598041 44.0603706808514, 143.528685298601 44.0590460342515, 143.529788440359 44.0586879989915, 143.529930204279 44.0586419882652, 143.530270901835 44.0585330791483, 143.530048900121 44.058195021586, 143.530214159923 44.0581443727983, 143.530515039133 44.0580521573159, 143.530930343444 44.0584640285393, 143.53205293487 44.0595686927798, 143.531195713792 44.0598495843963, 143.531114364366 44.0598756844954)) ^^http://www.opengis.net/ont/geosparql#wktLiteral