メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.748671140275 35.3971839612426, 136.748868216241 35.3971835126799, 136.748887314241 35.3971573107533, 136.749170471138 35.3971165245779, 136.749154847189 35.3980613188838, 136.749120006233 35.3988968930338, 136.74889033525 35.3989548349832, 136.748553990781 35.3989435359384, 136.748557472114 35.3973204696529, 136.748557600212 35.3971837731933, 136.748671140275 35.3971839612426)) ^^http://www.opengis.net/ont/geosparql#wktLiteral