What type of food is on the plate?
The food is potato salad.
   src        edge_attr  dst
0    0   to the left of    3
1    0               on    7
2    2   to the left of    6
3    3               on    1
4    3  to the right of    7
5    3  to the right of    0
6    5               on    4
7    6  to the right of    2
8    7   to the left of    3