メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((139.637378272556 35.4498533456891, 139.635994881642 35.450524529819, 139.635992475614 35.450214783978, 139.635990853682 35.4497342347288, 139.635925920966 35.4496369857144, 139.63640749502 35.4493924129384, 139.636500710114 35.4495738586096, 139.636688872064 35.4494815559241, 139.636984411566 35.4493219982122, 139.637378272556 35.4498533456891)) ^^http://www.opengis.net/ont/geosparql#wktLiteral