What food is to the left of the sandwich with the lettuce?
The food is an egg.
    src        edge_attr  dst
0     0               on   12
1     0   to the left of   12
2     0   to the left of    7
3     0   to the left of    1
4     0   to the left of    9
..  ...              ...  ...
80   12   to the left of    6
81   12  to the right of    0
82   12   to the left of    1
83   12               in    3
84   12   to the left of    7

[85 rows x 3 columns]