Is the fence in the bottom part of the image?
No, the fence is in the top of the image.
    src        edge_attr  dst
0     0   to the left of   19
1     0   to the left of   13
2     0  to the right of    4
3     0  to the right of    1
4     0  to the right of   10
5     1         carrying   13
6     1   to the left of    6
7     1   to the left of    5
8     1   to the left of    0
9     1   to the left of   14
10    1   to the left of   19
11    1   to the left of    2
12    2   to the left of   19
13    2  to the right of    1
14    2  to the right of    4
15    4   to the left of    5
16    4   to the left of    2
17    4   to the left of    0
18    4   to the left of   19
19    4   to the left of   14
20    4   to the left of    6
21    5  to the right of    4
22    5  to the right of    1
23    5   to the left of    8
24    5  to the right of   16
25    6  to the right of    1
26    6  to the right of    4
27    6   to the left of   19
28    6   to the left of   13
29    6  to the right of   10
30    8  to the right of    5
31    8  to the right of   16
32    9  to the right of   18
33   10   to the left of    0
34   10   to the left of    6
35   13  to the right of   19
36   13  to the right of   14
37   13  to the right of    0
38   13  to the right of    6
39   14  to the right of    4
40   14  to the right of    1
41   14   to the left of   13
42   16   to the left of    5
43   16   to the left of    8
44   17               on    5
45   18   to the left of    9
46   19  to the right of    0
47   19  to the right of    2
48   19  to the right of    1
49   19  to the right of    4
50   19  to the right of    6
51   19   to the left of   13