Rectangles: (5 entries)
  0: Rectangle: x1=0, y1=0, x2=0, y2=0
  1: Rectangle: x1=2, y1=36, x2=52, y2=48
  2: Rectangle: x1=21, y1=59, x2=71, y2=71
  3: Rectangle: x1=39, y1=80, x2=75, y2=92
  4: Rectangle: x1=33, y1=93, x2=83, y2=105