Is the fence on the right side of the picture?
No, the fence is on the left of the image.
    src        edge_attr  dst
0     0               of   18
1     0  to the right of   14
2     0   to the left of    4
3     3               of   18
4     3   to the left of   13
5     4  to the right of   16
6     4               of   18
7     4  to the right of    0
8     4  to the right of   19
9     5   to the left of   16
10    7  to the right of    9
11    7  to the right of   17
12    9   to the left of    7
13    9  to the right of   17
14   10  to the right of   16
15   12   to the left of   19
16   12   to the left of   16
17   12  to the right of   21
18   13   to the left of   17
19   13  to the right of    3
20   14   to the left of    0
21   14   to the left of   19
22   15           behind   18
23   16               of   18
24   16   to the left of   10
25   16  to the right of    5
26   16  to the right of   12
27   16   to the left of    4
28   17   to the left of    9
29   17   to the left of    7
30   17  to the right of   13
31   18  to the right of   21
32   18      in front of   15
33   19   to the left of    4
34   19               of   18
35   19  to the right of   12
36   19  to the right of   14
37   21   to the left of   12
38   21   to the left of   18