Rectangles: (5 entries)
  0: Rectangle: x1=0, y1=0, x2=0, y2=0
  1: Rectangle: x1=72, y1=45, x2=128, y2=56
  2: Rectangle: x1=102, y1=60, x2=158, y2=71
  3: Rectangle: x1=132, y1=75, x2=188, y2=86
  4: Rectangle: x1=152, y1=85, x2=208, y2=96