What animal is eating the grass?
The elephant is eating the grass.
    src        edge_attr  dst
0     1   to the left of   18
1     1   to the left of    5
2     1  to the right of   17
3     1  to the right of   12
4     1   to the left of    7
..  ...              ...  ...
60   17   to the left of    7
61   18               of   13
62   18  to the right of    1
63   18  to the right of    2
64   18  to the right of    7

[65 rows x 3 columns]