Is the fence in the bottom part or in the top of the image?
The fence is in the bottom of the image.
    src        edge_attr  dst
0     0   to the left of    7
1     0  to the right of   10
2     0  to the right of    2
3     1  to the right of   12
4     2  to the right of    3
5     2   to the left of    0
6     2   to the left of    7
7     2  to the right of   12
8     2   to the left of    9
9     2  to the right of   15
10    3   to the left of    2
11    3   to the left of    9
12    3  to the right of   12
13    4   to the left of   16
14    6      standing in    5
15    7  to the right of    2
16    7  to the right of    0
17    7  to the right of    9
18    9  to the right of    2
19    9  to the right of    3
20    9   to the left of    7
21    9  to the right of   10
22   10   to the left of    9
23   10  to the right of   12
24   10  to the right of   15
25   10   to the left of    0
26   11   to the left of   16
27   11   to the left of   19
28   12   to the left of    3
29   12   to the left of    2
30   12   to the left of   10
31   12   to the left of    1
32   13               on   12
33   15   to the left of    2
34   15               in   14
35   15   to the left of   10
36   16  to the right of    4
37   16  to the right of   11
38   19  to the right of   11