メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((142.028407780796 43.5698977051359, 142.02772556348 43.5697836656889, 142.026887931923 43.569771967317, 142.025902202221 43.5697666934214, 142.025062282557 43.5697465739257, 142.024544238254 43.5696748894423, 142.024077194227 43.5695696507499, 142.025231980929 43.5677706435357, 142.025649713975 43.567732069758, 142.025951667801 43.5676314536931, 142.029012748775 43.5662133658964, 142.02899549047 43.5663439635396, 142.02887618733 43.5672434528663, 142.028729219657 43.5683143800291, 142.028407780796 43.5698977051359)) ^^http://www.opengis.net/ont/geosparql#wktLiteral