Rectangles: (5 entries)
  0: Rectangle: x1=0, y1=0, x2=0, y2=0
  1: Rectangle: x1=25, y1=51, x2=38, y2=58
  2: Rectangle: x1=37, y1=73, x2=53, y2=80
  3: Rectangle: x1=49, y1=95, x2=65, y2=102
  4: Rectangle: x1=57, y1=107, x2=73, y2=114