Is the sheep behind or in front of the fence that is to the right of the lock?
The sheep is behind the fence.
    src        edge_attr  dst
0     2   to the left of    4
1     4  to the right of    2
2     4  to the right of    9
3     5           behind    6
4     5      standing in    3
5     6      in front of    5
6     6  to the right of    8
7     8   to the left of    9
8     8   to the left of    6
9     9  to the right of    8
10    9   to the left of    4