メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((140.302668054549 37.4203756763399, 140.303134015151 37.4216614286076, 140.301829851223 37.4216232369827, 140.301534644893 37.4215810414004, 140.300982681852 37.4214346834233, 140.301121133637 37.4212298377596, 140.301313829734 37.4210185811384, 140.30153747551 37.420788615269, 140.302419142419 37.4202899324433, 140.302668054549 37.4203756763399)) ^^http://www.opengis.net/ont/geosparql#wktLiteral