メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.410698344406 40.7372241520669, 141.410128604754 40.7404180640907, 141.409841825553 40.7417933269187, 141.409105291125 40.7452855409864, 141.408496049214 40.7478872757698, 141.404794126615 40.7474832343285, 141.40547202693 40.7448927108257, 141.405059637775 40.7447211875345, 141.40644646454 40.7430488231497, 141.407946474907 40.7421759978688, 141.408473172904 40.7422274009222, 141.408956425244 40.7397208434375, 141.409706350804 40.7355824500818, 141.410950432949 40.7356813247614, 141.410698344406 40.7372241520669)) ^^http://www.opengis.net/ont/geosparql#wktLiteral