メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((144.281199388642 44.0197971128158, 144.281190250313 44.0198041717443, 144.281187758255 44.0198068730795, 144.281116692445 44.0198626979099, 144.280970816219 44.0199743510947, 144.280824941132 44.0200851040195, 144.280677816498 44.0201940536855, 144.280546895605 44.020285899911, 144.280427213198 44.0203812758247, 144.279243050395 44.0202401656062, 144.279464222129 44.0201137716166, 144.280025763329 44.0198247710098, 144.280250167551 44.0197246788949, 144.280784053317 44.0195105690871, 144.281199388642 44.0197971128158)) ^^http://www.opengis.net/ont/geosparql#wktLiteral