Rectangles: (5 entries)
  0: Rectangle: x1=0, y1=0, x2=0, y2=0
  1: Rectangle: x1=584, y1=493, x2=636, y2=545
  2: Rectangle: x1=763, y1=639, x2=819, y2=695
  3: Rectangle: x1=942, y1=786, x2=1008, y2=854
  4: Rectangle: x1=1058, y1=892, x2=1134, y2=969