What vegetable is to the left of the banana?
The vegetable is an onion.
    src        edge_attr  dst
0     0  to the right of    5
1     0  to the right of    1
2     0  to the right of    7
3     0  to the right of    6
4     1   to the left of    0
5     1  to the right of    6
6     2   to the left of    9
7     2   to the left of    6
8     3   to the left of    4
9     3   to the left of    7
10    3   to the left of    5
11    4  to the right of    3
12    5   to the left of    0
13    5  to the right of    3
14    6   to the left of    0
15    6   to the left of    1
16    6  to the right of    2
17    7  to the right of    3
18    7   to the left of    0
19    8   to the left of   10
20    9  to the right of    2
21   10  to the right of    8