メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.480066269899 43.0561079355362, 141.48042393095 43.0562939062912, 141.480451507049 43.0563780666477, 141.480609082464 43.0567427369213, 141.480536187582 43.0568506269311, 141.479790326292 43.0575817615143, 141.479491212721 43.0578594534993, 141.479407433779 43.0579899158797, 141.47933552669 43.058106672859, 141.4792326049 43.0583297727649, 141.479181960188 43.0585637044111, 141.479145566108 43.0588047646796, 141.478326418046 43.058722301045, 141.477673836195 43.0586654306103, 141.477029891059 43.0586005279458, 141.476962084026 43.0585813620513, 141.476422622471 43.0582426589344, 141.476465979805 43.0582079274532, 141.477296354765 43.0573988242524, 141.477951356493 43.0566916370975, 141.478501743529 43.0561463462081, 141.478719075623 43.0559275354955, 141.479054817325 43.0555697040337, 141.479649129633 43.0558852025903, 141.480066269899 43.0561079355362)) ^^http://www.opengis.net/ont/geosparql#wktLiteral