Rectangles: (5 entries)
  0: Rectangle: x1=0, y1=0, x2=0, y2=0
  1: Rectangle: x1=156, y1=500, x2=180, y2=507
  2: Rectangle: x1=203, y1=643, x2=227, y2=650
  3: Rectangle: x1=247, y1=790, x2=279, y2=800
  4: Rectangle: x1=279, y1=898, x2=311, y2=908