メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.222654939339 35.2318824577602, 136.223062790031 35.2323853189082, 136.222680867373 35.232594042777, 136.221927811518 35.2330095659081, 136.221061509788 35.2334532459428, 136.220877430754 35.2332139250652, 136.220677242448 35.2329611105688, 136.220466497311 35.2327002875035, 136.21984495972 35.2319034284113, 136.221810103817 35.2308788269048, 136.221886685117 35.2308315046148, 136.222654939339 35.2318824577602)) ^^http://www.opengis.net/ont/geosparql#wktLiteral