Is the fence on the left?
Yes, the fence is on the left of the image.
    src        edge_attr  dst
0     0  to the right of    8
1     0  to the right of    7
2     1  to the right of    6
3     3  to the right of    8
4     3  to the right of    7
5     5  to the right of    8
6     6   to the left of    1
7     7               on    8
8     7   to the left of    0
9     7  to the right of    8
10    7   to the left of    3
11    8   to the left of    3
12    8   to the left of    0
13    8   to the left of    7
14    8   to the left of    5