What kind of vegetable is green?
The vegetable is broccoli.
    src        edge_attr  dst
0     0  to the right of    3
1     2  to the right of    3
2     3   to the left of    9
3     3   to the left of    2
4     3   to the left of    5
5     3   to the left of    0
6     3   to the left of    7
7     3   to the left of    8
8     4  to the right of    5
9     5  to the right of    3
10    5           behind    7
11    5   to the left of    4
12    6  to the right of    8
13    6  to the right of    7
14    7  to the right of    3
15    7   to the left of    6
16    8   to the left of    6
17    8  to the right of    3
18    9  to the right of    3