text: siehe http://tools.geofabrik.de/osmi/?view=multipolygon&lon=8.10470&lat=49.62525&zoom=12&overlays=invalid_geometry_hull,duplicate_ways,intersections,intersection_lines,ring_not_closed_hull,ring_not_closed,unconnected_end_nodes,touching_inner_rings_hull,touching_inner_rings,role_mismatch_hull,role_mismatch,duplicate_tags_hull,duplicate_tags
  
  