What kind of food is brown?
The food is a sandwich.
    src        edge_attr  dst
0     0               on    1
1     0   to the left of    3
2     0   to the left of    9
3     1             with    0
4     2               in    1
5     3  to the right of    0
6     5   to the left of    9
7     8   to the left of   11
8     9  to the right of    5
9     9          holding    1
10    9  to the right of   11
11    9  to the right of   12
12    9  to the right of    0
13   10          holding    1
14   11   to the left of    9
15   11  to the right of    8
16   12   to the left of    9