Rectangles: (6 entries)
  0: Rectangle: x1=4, y1=3, x2=74, y2=133
  1: Rectangle: x1=124, y1=2, x2=188, y2=137
  2: Rectangle: x1=246, y1=3, x2=316, y2=128
  3: Rectangle: x1=1, y1=133, x2=66, y2=255
  4: Rectangle: x1=124, y1=144, x2=196, y2=251
  5: Rectangle: x1=250, y1=128, x2=313, y2=255