What kind of food is on the sandwich?
The food is peanut butter.
    src        edge_attr  dst
0     0               in    7
1     1  to the right of    5
2     3             with    5
3     3  to the right of    8
4     4  to the right of    5
5     5   to the left of    4
6     5   to the left of    1
7     5               on    3
8     5           inside    3
9     7  to the right of    8
10    8   to the left of    7
11    8   to the left of    3