Is the fence in the top part or in the bottom of the image?
The fence is in the bottom of the image.
    src        edge_attr  dst
0     0   to the left of    9
1     0  to the right of   13
2     0   to the left of   10
3     1   to the left of   12
4     1   to the left of   10
5     1  to the right of    8
6     1   to the left of    6
7     1  to the right of    5
8     1   to the left of    9
9     2  to the right of   16
10    3  to the right of   15
11    3  to the right of   19
12    5   to the left of    1
13    5   to the left of   11
14    6               of   11
15    6  to the right of    1
16    7               in    4
17    7   to the left of   11
18    7   to the left of   14
19    7   to the left of   19
20    8   to the left of   11
21    8   to the left of    1
22    8   to the left of   13
23    9  to the right of    0
24    9  to the right of    1
25    9  to the right of   11
26    9  to the right of   10
27   10  to the right of    1
28   10  to the right of    0
29   10   to the left of    9
30   11   to the left of   12
31   11  to the right of    7
32   11  to the right of   18
33   11  to the right of    8
34   11  to the right of    5
35   11  to the right of   16
36   11   to the left of    9
37   12  to the right of   11
38   12  to the right of   13
39   12  to the right of    1
40   13   to the left of   12
41   13   to the left of    0
42   13  to the right of    8
43   14  to the right of   18
44   14  to the right of    7
45   15   to the left of    3
46   15               of   11
47   15  to the right of   18
48   15  to the right of   19
49   16   to the left of   11
50   16   to the left of    2
51   18   to the left of   15
52   18   to the left of   11
53   18   to the left of   14
54   19               of   11
55   19   to the left of   15
56   19   to the left of    3
57   19  to the right of    7