What food is on the pizza?
The food is mushrooms.
   src        edge_attr  dst
0    0  to the right of    8
1    0               on    3
2    1               of    3
3    2               on    3
4    3             with    8
5    3             with    0
6    3               on    4
7    5               on    4
8    8               on    3
9    8   to the left of    0