メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((140.49363633921 40.5886843798954, 140.494121479539 40.5887762956392, 140.494867513891 40.5889232976369, 140.494577963322 40.5898405556258, 140.494424518041 40.5902930192109, 140.494369235745 40.5905754275659, 140.494328167076 40.5905835400641, 140.493680259469 40.5906671883259, 140.492321803342 40.590835905837, 140.491585308687 40.5909373985409, 140.491670984857 40.5906431196008, 140.491949296248 40.5898163194022, 140.492262339224 40.5889009674421, 140.492245353787 40.5888974334575, 140.49240302131 40.5884470961479, 140.49363633921 40.5886843798954)) ^^http://www.opengis.net/ont/geosparql#wktLiteral