Rectangles: (5 entries)
  0: Rectangle: x1=0, y1=0, x2=0, y2=0
  1: Rectangle: x1=449, y1=103, x2=475, y2=114
  2: Rectangle: x1=583, y1=124, x2=617, y2=139
  3: Rectangle: x1=716, y1=154, x2=759, y2=173
  4: Rectangle: x1=807, y1=179, x2=856, y2=202