メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.9490285581 35.236863877023, 136.94849842195 35.2372103094905, 136.949700828784 35.2381277716097, 136.9492842619 35.238502432901, 136.948698306159 35.2390227011422, 136.947485180163 35.2380446515195, 136.947357712747 35.2379246466501, 136.946486976402 35.2372183063869, 136.946433619129 35.2371759171185, 136.946741390216 35.236911070453, 136.946927486928 35.2367572673194, 136.946946913336 35.2367437596188, 136.946939513286 35.2367003352824, 136.946767852216 35.2358778386859, 136.946792031231 35.2358956971385, 136.947283306434 35.2355317321548, 136.9490285581 35.236863877023)) ^^http://www.opengis.net/ont/geosparql#wktLiteral