The zebra is in front of what?
The zebra is in front of the log.
   src        edge_attr  dst
0    0    surrounded by    8
1    1  to the right of    8
2    2           behind    3
3    3      in front of    2
4    3           behind    4
5    4      in front of    3
6    8               of    0
7    8   to the left of    1
8    8      surrounding    0