Rectangles: (5 entries)
  0: Rectangle: x1=0, y1=0, x2=0, y2=0
  1: Rectangle: x1=561, y1=296, x2=599, y2=309
  2: Rectangle: x1=728, y1=376, x2=778, y2=393
  3: Rectangle: x1=897, y1=462, x2=959, y2=484
  4: Rectangle: x1=1010, y1=529, x2=1079, y2=553