メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((134.192157612887 35.5170560951015, 134.188334082711 35.5172156712462, 134.186378862075 35.5173081774656, 134.186227995216 35.5154924940326, 134.18627136211 35.5154571602353, 134.186803432393 35.5150655278337, 134.19199661874 35.5144966964545, 134.192157612887 35.5170560951015)) ^^http://www.opengis.net/ont/geosparql#wktLiteral