What vegetables are red?
The vegetables are peppers.
    src        edge_attr  dst
0     0   to the left of    3
1     0   to the left of    2
2     0   to the left of   11
3     0   to the left of    5
4     1   to the left of   13
5     1   to the left of    5
6     2  to the right of    3
7     2  to the right of    0
8     2   to the left of    7
9     2   to the left of    5
10    3   to the left of    2
11    3  to the right of    0
12    3   to the left of    7
13    3   to the left of    5
14    3   to the left of   13
15    5   to the left of   13
16    5  to the right of    3
17    5  to the right of    0
18    5  to the right of    2
19    5  to the right of    1
20    6  to the right of    7
21    6               on   11
22    7       sitting at    4
23    7  to the right of    2
24    7  to the right of    3
25    7   to the left of    6
26   11  to the right of    0
27   13  to the right of    1
28   13  to the right of    3
29   13  to the right of    5