What is the food that is not green?
The food is tomatoes.
    src        edge_attr  dst
0     0  to the right of   25
1     0               on    5
2     0   to the left of   10
3     0   to the left of   18
4     0   to the left of   21
..  ...              ...  ...
89   25   to the left of    4
90   25   to the left of    6
91   25   to the left of   13
92   25   to the left of   23
93   25   to the left of   24

[94 rows x 3 columns]