Which kind of food isn't brown?
The food is an onion.
    src        edge_attr  dst
0     0               on    9
1     0   to the left of    8
2     1   to the left of    5
3     2   to the left of    8
4     2  to the right of    7
5     3   to the left of    8
6     5               on    4
7     5  to the right of    1
8     7               on    4
9     7   to the left of   11
10    7   to the left of    2
11    8  to the right of    2
12    8  to the right of    0
13    8  to the right of   11
14    8  to the right of    3
15   11   to the left of    8
16   11  to the right of    7