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