メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((144.963092217869 43.5485276225452, 144.963514944071 43.548808488968, 144.96273818168 43.5494490446754, 144.962632524032 43.5493826401094, 144.962292626605 43.5491550380414, 144.96200873183 43.5489688600221, 144.962800795687 43.5483374398928, 144.962910258125 43.5484025217565, 144.963092217869 43.5485276225452)) ^^http://www.opengis.net/ont/geosparql#wktLiteral