メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((139.012448820791 37.758310337463, 139.012032130582 37.7583909891831, 139.01201854988 37.7583120682629, 139.011522441731 37.7584347356173, 139.011386389959 37.7582293583786, 139.011376807368 37.7582156035498, 139.011062487077 37.757764204864, 139.010927720953 37.7575714918143, 139.01084625479 37.7574707615179, 139.011886351482 37.7573941630105, 139.011981457277 37.7580893671962, 139.01235951107 37.7580180344214, 139.012448820791 37.758310337463)) ^^http://www.opengis.net/ont/geosparql#wktLiteral