Which kind of animal is large?
The animal is an elephant.
    src        edge_attr  dst
0     1   to the left of   12
1     2   to the left of   12
2     2  to the right of    3
3     2   to the left of    7
4     2   to the left of   18
..  ...              ...  ...
61   19   to the left of    9
62   20  to the right of    3
63   20   to the left of   19
64   20  to the right of   17
65   20   to the left of   18

[66 rows x 3 columns]