Which side are the long skis on?
The skis are on the right of the image.
    src        edge_attr  dst
0     1   to the left of    5
1     1   to the left of    4
2     1   to the left of   10
3     1  to the right of    6
4     2  to the right of    6
5     2  to the right of    4
6     3  to the right of    9
7     4  to the right of    6
8     4   to the left of    2
9     4  to the right of    1
10    5  to the right of    1
11    6   to the left of    1
12    6   to the left of    4
13    6   to the left of    2
14    6   to the left of   10
15    8               in    7
16    9   to the left of    3
17   10  to the right of    6
18   10  to the right of    1