メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((143.547225849952 43.2369630024923, 143.545718540931 43.237027029661, 143.54571459721 43.2369815713178, 143.545661081245 43.2363632115041, 143.545653049837 43.2362702574519, 143.545341762106 43.2335780892283, 143.545316950399 43.2324071892025, 143.545449481294 43.2320617087592, 143.546527986513 43.2320615663851, 143.54680190258 43.2319384037639, 143.546868040404 43.2323583571988, 143.546978078834 43.2337367423951, 143.547219396229 43.2368947154429, 143.547225849952 43.2369630024923)) ^^http://www.opengis.net/ont/geosparql#wktLiteral