What is the cat in front of?
The cat is in front of the wall.
    src        edge_attr  dst
0     0  to the right of    4
1     0  to the right of    2
2     1      in front of    6
3     1         lying on    7
4     2   to the left of    0
5     3  to the right of    8
6     4   to the left of    0
7     6  to the right of    8
8     6           behind    1
9     8   to the left of    6
10    8   to the left of    3