What is the color of the clouds in the sky?
The clouds are gray.
    src        edge_attr  dst
0     0  to the right of    5
1     2          wearing   10
2     2   to the left of   13
3     2  to the right of    3
4     2             near    3
5     2               at   14
6     3          next to    2
7     3               by   14
8     3   to the left of   13
9     3   to the left of    2
10    3   to the left of   10
11    5   to the left of    0
12    5   to the left of    7
13    6  to the right of    9
14    6  to the right of   19
15    6   to the left of   18
16    7  to the right of    5
17    9   to the left of    6
18   10  to the right of    3
19   11               in    1
20   13  to the right of    3
21   13  to the right of    2
22   18  to the right of    6
23   19   to the left of    6