メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((144.326007536177 43.238431300666, 144.325360611874 43.2387780617465, 144.32399879214 43.239158666937, 144.323453573732 43.2378201599197, 144.323193621014 43.2372685397162, 144.322706092013 43.2362346107644, 144.322588373623 43.2359683173439, 144.322686769867 43.2359371395068, 144.324703894034 43.2354308795501, 144.326007536177 43.238431300666)) ^^http://www.opengis.net/ont/geosparql#wktLiteral