Which kind of food is not dark?
The food is a fruit.
    src        edge_attr  dst
0     0   to the left of    1
1     0   to the left of   23
2     0   to the left of   19
3     1  to the right of    0
4     1  to the right of   11
..  ...              ...  ...
81   26   to the left of   22
82   27   to the left of    9
83   28   to the left of    8
84   28   to the left of   15
85   28   to the left of   17

[86 rows x 3 columns]