What is the color of the grapes?
The grapes are white.
    src        edge_attr  dst
0     0               by    2
1     0               on    3
2     0               on    2
3     0  to the right of    1
4     1   to the left of    0
5     2             near    3
6     2   to the left of    3
7     3  to the right of    2
8     3             near    2
9     3  to the right of    7
10    4               by    6
11    6               on    5
12    7   to the left of    3