メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.779528422495 43.2132596296363, 141.778748822279 43.2140447401001, 141.777941801546 43.2136076990354, 141.777271804186 43.213283323481, 141.777805640373 43.2126798544888, 141.778011082545 43.2124476300418, 141.779343347986 43.2131505635796, 141.779528422495 43.2132596296363)) ^^http://www.opengis.net/ont/geosparql#wktLiteral