What vegetable is to the right of the pasta?
The vegetable is a tomato.
   src        edge_attr  dst
0    0               on    4
1    1             with    3
2    1  to the right of    2
3    2               on    0
4    2   to the left of    1
5    3               on    1
6    6               on    0
7    6  to the right of    7
8    7               on    0
9    7   to the left of    6