Rectangles: (5 entries)
  0: Rectangle: x1=0, y1=0, x2=0, y2=0
  1: Rectangle: x1=13, y1=413, x2=34, y2=444
  2: Rectangle: x1=15, y1=533, x2=46, y2=573
  3: Rectangle: x1=21, y1=654, x2=54, y2=700
  4: Rectangle: x1=0, y1=0, x2=0, y2=0