Is the fence in the top part or in the bottom of the image?
The fence is in the top of the image.
    src        edge_attr  dst
0     0  to the right of    5
1     2   to the left of    7
2     3   to the left of    7
3     4  to the right of    7
4     4  to the right of    5
5     5   to the left of    0
6     5   to the left of    4
7     5   to the left of    6
8     6  to the right of    5
9     7   to the left of    4
10    7  to the right of    2
11    7  to the right of    3