Rectangles: (5 entries)
  0: Rectangle: x1=0, y1=0, x2=0, y2=0
  1: Rectangle: x1=188, y1=253, x2=226, y2=266
  2: Rectangle: x1=244, y1=320, x2=294, y2=337
  3: Rectangle: x1=301, y1=393, x2=363, y2=415
  4: Rectangle: x1=339, y1=451, x2=408, y2=475