What animal is eating the grass?
The cow is eating the grass.
   src        edge_attr  dst
0    0           eating    5
1    0   to the left of    2
2    0  to the right of    1
3    1           eating    5
4    1   to the left of    2
5    1   to the left of    0
6    2  to the right of    1
7    2  to the right of    0
8    2   to the left of    3
9    3  to the right of    2