Does the cloudless sky look white?
Yes, the sky is white.
    src        edge_attr  dst
0     0  to the right of    1
1     1   to the left of   14
2     1   to the left of    2
3     1   to the left of    0
4     2           beside    1
5     2  to the right of    5
6     2  to the right of    1
7     3               on    4
8     5   to the left of    2
9     5   to the left of   14
10    6   to the left of   10
11    7   to the left of   10
12    8   to the left of   10
13    9               on    3
14   10               on    3
15   10  to the right of    6
16   10  to the right of    7
17   10  to the right of    8
18   14  to the right of    1
19   14  to the right of    5