Rectangles: (5 entries)
  0: Rectangle: x1=0, y1=0, x2=0, y2=0
  1: Rectangle: x1=351, y1=645, x2=381, y2=655
  2: Rectangle: x1=455, y1=830, x2=488, y2=841
  3: Rectangle: x1=565, y1=1021, x2=604, y2=1034
  4: Rectangle: x1=621, y1=1150, x2=677, y2=1165