Is the wood fence in front or behind the giraffe?
The fence is behind the giraffe.
    src        edge_attr  dst
0     1   to the left of    8
1     2   to the left of    8
2     3   to the left of    4
3     3      in front of    6
4     4  to the right of    7
5     4  to the right of    3
6     6           behind    3
7     6      in front of    8
8     7   to the left of    4
9     8  to the right of    2
10    8  to the right of    1
11    8           behind    6