メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((139.870553038319 37.672353819003, 139.870386402773 37.6724096210205, 139.870311099083 37.6724185139584, 139.870147455011 37.6724225070307, 139.869837720198 37.6724269659334, 139.869616851815 37.6724366052793, 139.869209737611 37.6724650251746, 139.868896511628 37.672512986546, 139.868551158513 37.6725418076815, 139.869076984646 37.6720022975099, 139.869701048041 37.6719598759924, 139.870271553322 37.67192830711, 139.870402502855 37.6721221300525, 139.870553038319 37.672353819003)) ^^http://www.opengis.net/ont/geosparql#wktLiteral