In which part are the ropes?
The ropes are on the right of the image.
   src        edge_attr  dst
0    1   to the left of    7
1    1  to the right of    6
2    5        on top of    2
3    6   to the left of    7
4    6   to the left of    1
5    7  to the right of    6
6    7  to the right of    1