Which kind of food is to the left of the mushrooms?
The food is meat.
    src        edge_attr  dst
0     0   to the left of    8
1     0   to the left of    1
2     1  to the right of    0
3     1               on    9
4     2             with    5
5     2   to the left of    6
6     3  to the right of    7
7     3  to the right of    9
8     5               on    2
9     6  to the right of    2
10    7   to the left of    9
11    7   to the left of    3
12    8  to the right of    0
13    9   to the left of    3
14    9  to the right of    7