Rectangles: (5 entries)
  0: Rectangle: x1=0, y1=0, x2=0, y2=0
  1: Rectangle: x1=378, y1=253, x2=416, y2=266
  2: Rectangle: x1=490, y1=320, x2=540, y2=337
  3: Rectangle: x1=603, y1=393, x2=665, y2=415
  4: Rectangle: x1=679, y1=451, x2=748, y2=475