What animal eats the grass?
The animal is a zebra.
     src        edge_attr  dst
0      0  to the right of    9
1      0  to the right of   12
2      0   to the left of   26
3      1  to the right of   19
4      1  to the right of   17
..   ...              ...  ...
132   30   to the left of   19
133   30   to the left of   20
134   30   to the left of   21
135   31   to the left of   11
136   31  to the right of   10

[137 rows x 3 columns]