What animal is to the right of the rug?
The animal is a dog.
   src        edge_attr  dst
0    0   to the left of    3
1    0   to the left of    2
2    0   to the left of    4
3    2  to the right of    0
4    2   to the left of    4
5    3  to the right of    0
6    4               of    3
7    4  to the right of    0
8    4  to the right of    2