Are there any ropes or skis?
Yes, there are skis.
    src        edge_attr  dst
0     0   to the left of   14
1     1               of    0
2     1   to the left of   14
3     2               on   15
4     5   to the left of    8
5     6               on    0
6     8  to the right of    5
7    11               of    5
8    12               on    6
9    14  to the right of    0
10   14  to the right of    1