メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((139.525814031069 35.8765373740962, 139.526545374406 35.877009238433, 139.52606857354 35.8772872097311, 139.525692423447 35.8775023533293, 139.525667881799 35.8775164790825, 139.524706455751 35.8780937717599, 139.524682098807 35.8780609215628, 139.524487577665 35.8777866702309, 139.523965902071 35.8769890605801, 139.523932670995 35.8769410045207, 139.52394294564 35.8769020117053, 139.523679610006 35.8765261725807, 139.524539101114 35.8762265485573, 139.524718179341 35.8759153828427, 139.525487139658 35.8763562264429, 139.525814031069 35.8765373740962)) ^^http://www.opengis.net/ont/geosparql#wktLiteral