On which side is the fence?
The fence is on the right of the image.
    src        edge_attr  dst
0     0   to the left of    3
1     0  to the right of   16
2     1   to the left of    4
3     3  to the right of   16
4     3  to the right of    0
5     3  to the right of   14
6     3   to the left of    5
7     3   to the left of    8
8     4  to the right of   16
9     4   to the left of   10
10    4  to the right of    9
11    4  to the right of    1
12    4   to the left of    5
13    4   to the left of   15
14    5  to the right of    4
15    5  to the right of    3
16    5  to the right of    8
17    5  to the right of   11
18    7  to the right of   12
19    8  to the right of    3
20    8   to the left of    5
21    9               on    1
22    9   to the left of    4
23   10  to the right of   11
24   10  to the right of    4
25   11   to the left of    5
26   11   to the left of   15
27   11   to the left of   10
28   12   to the left of    7
29   12   to the left of   13
30   12   to the left of   15
31   13  to the right of   12
32   14   to the left of    3
33   15  to the right of   11
34   15  to the right of    4
35   15  to the right of   12
36   16   to the left of    3
37   16   to the left of    0
38   16   to the left of    4