Are there both doors and windows in the image?
Yes, there are both a window and a door.
   src        edge_attr  dst
0    0   to the left of    1
1    1  to the right of    0
2    1   to the left of    8
3    4   to the left of    8
4    7   to the left of    8
5    8  to the right of    1
6    8  to the right of    4
7    8  to the right of    7