What kind of food is not flat?
The food is a squash.
    src        edge_attr  dst
0     2   to the left of   10
1     2   to the left of    7
2     7  to the right of    2
3     7  to the right of    8
4     7  to the right of    9
5     7  to the right of   12
6     7  to the right of   10
7     8   to the left of    7
8     8             with   11
9     9   to the left of    7
10   10  to the right of    2
11   10   to the left of    7
12   11               on    8
13   11  to the right of   12
14   12   to the left of   11
15   12   to the left of    7