Are there either fences or skis in the picture?
Yes, there is a fence.
    src        edge_attr  dst
0     0  to the right of    9
1     0  to the right of    3
2     0  to the right of    6
3     1   to the left of    4
4     1  to the right of    6
5     3   to the left of    0
6     4  to the right of    7
7     4  to the right of    5
8     4  to the right of    1
9     5   to the left of    4
10    6   to the left of    1
11    6   to the left of    0
12    7   to the left of    4
13    9   to the left of    0