Rectangles: (5 entries)
  0: Rectangle: x1=0, y1=0, x2=0, y2=0
  1: Rectangle: x1=193, y1=221, x2=250, y2=249
  2: Rectangle: x1=251, y1=278, x2=336, y2=315
  3: Rectangle: x1=309, y1=342, x2=415, y2=387
  4: Rectangle: x1=348, y1=394, x2=467, y2=444