Rectangles: (5 entries)
  0: Rectangle: x1=0, y1=0, x2=0, y2=0
  1: Rectangle: x1=344, y1=330, x2=360, y2=332
  2: Rectangle: x1=448, y1=420, x2=466, y2=423
  3: Rectangle: x1=552, y1=516, x2=575, y2=520
  4: Rectangle: x1=620, y1=583, x2=646, y2=588