What kind of food is to the left of the food with the veggies?
The food is cheese.
    src        edge_attr  dst
0     2  to the right of    6
1     2   to the left of    7
2     2      topped with    9
3     3             with    6
4     3             with   12
5     3  to the right of   14
6     3             with    7
7     4   to the left of   14
8     5               on    8
9     5   to the left of   14
10    6   to the left of    2
11    7  to the right of    2
12    7  to the right of    9
13    9   to the left of    7
14   13  to the right of   15
15   14   to the left of    3
16   14  to the right of    5
17   14  to the right of    4
18   15               on    8
19   15   to the left of   13