Do you see both fences and lambs?
No, there are lambs but no fences.
    src        edge_attr  dst
0     1           behind    7
1     2   to the left of   10
2     2   to the left of    8
3     2  to the right of    4
4     2  to the right of    3
5     2   to the left of    6
6     2   to the left of    5
7     3  to the right of    9
8     3   to the left of    2
9     4  to the right of    9
10    4   to the left of    8
11    4   to the left of   10
12    4   to the left of    6
13    4   to the left of    2
14    5  to the right of    2
15    5               by    1
16    5  to the right of    8
17    5  to the right of    6
18    5  to the right of   10
19    6   to the left of    8
20    6   to the left of   10
21    6               by    1
22    6  to the right of    2
23    6   to the left of    5
24    6  to the right of    4
25    7      in front of    1
26    8  to the right of    2
27    8  to the right of    4
28    8   to the left of    5
29    8  to the right of    6
30    8   to the left of   10
31    9   to the left of    4
32    9   to the left of    3
33   10  to the right of    2
34   10  to the right of    8
35   10  to the right of    6
36   10   to the left of    5
37   10  to the right of    4
38   10               by    1