What is the ski lift on?
The ski lift is on the wire.
    src        edge_attr  dst
0     0  to the right of   11
1     0  to the right of    3
2     0   to the left of   20
3     0  to the right of   19
4     1  to the right of   17
..  ...              ...  ...
75   21  to the right of   13
76   21   to the left of   14
77   22               on   21
78   22   to the left of   10
79   22   to the left of    9

[80 rows x 3 columns]