Is there a tomato to the right of the meat?
No, there are peppers to the right of the meat.
    src        edge_attr  dst
0     0   to the left of    2
1     0   to the left of    3
2     1  to the right of    4
3     1   to the left of    5
4     2  to the right of    0
5     2             with    3
6     2  to the right of    5
7     3               on    2
8     3  to the right of    0
9     4   to the left of    1
10    5   to the left of    2
11    5  to the right of    1