What is the color of the clouds?
The clouds are white.
    src        edge_attr  dst
0     0   to the left of    3
1     1               in    5
2     2          next to    5
3     2               by    5
4     2             near    5
5     3               in    4
6     3  to the right of    0
7     5               by    2
8     5             near    2
9     6               in    5
10    7               on    2
11    8               by    5
12    8           beside    5
13    9               on    2