メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.837898024681 39.2685649700909, 141.837837623208 39.2685766113752, 141.836860749579 39.2687788585922, 141.835888717015 39.2689465029056, 141.834893538997 39.2691293989078, 141.834138540646 39.2692609565767, 141.833908685248 39.2693000224402, 141.833389936382 39.2694217947067, 141.832988153426 39.268823059861, 141.832834093548 39.2685573145097, 141.8336720717 39.2684113366816, 141.834478645226 39.2682658287611, 141.834624212645 39.2682395916043, 141.835612004017 39.2680601408163, 141.836579205326 39.2678911329606, 141.837243971064 39.2677692770196, 141.83754068691 39.2677148486815, 141.838721473916 39.2674971795748, 141.837898024681 39.2685649700909)) ^^http://www.opengis.net/ont/geosparql#wktLiteral