What color do the clouds have?
The clouds have white color.
    src        edge_attr  dst
0     0  to the right of    8
1     1  to the right of    4
2     1  to the right of    8
3     1               on   12
4     2  to the right of    8
5     2  to the right of    4
6     3  to the right of    8
7     4   to the left of    6
8     4   to the left of    2
9     4   to the left of    1
10    5  to the right of    8
11    5   to the left of   11
12    6   to the left of    7
13    6  to the right of    8
14    6  to the right of    4
15    7  to the right of    6
16    8   to the left of   10
17    8   to the left of    2
18    8   to the left of    0
19    8   to the left of   12
20    8   to the left of    6
21    8   to the left of    3
22    8   to the left of    1
23    8   to the left of    9
24    8   to the left of    5
25    9   to the left of   11
26    9  to the right of    8
27   10  to the right of    8
28   11  to the right of    5
29   11  to the right of    9
30   12  to the right of    8