Is the fence on the left side?
Yes, the fence is on the left of the image.
    src        edge_attr  dst
0     0      in front of    2
1     0            below   10
2     1   to the left of    8
3     2           behind    0
4     2  to the right of   11
5     2  to the right of    9
6     5  to the right of   11
7     5  to the right of    7
8     7   to the left of    5
9     7  to the right of   10
10    8  to the right of    1
11    9   to the left of   11
12    9   to the left of    2
13   10            above    0
14   10   to the left of   11
15   10   to the left of    7
16   11  to the right of   10
17   11   to the left of    2
18   11  to the right of    9
19   11   to the left of    5