Do you think that sky is blue or white?
The sky is blue.
    src        edge_attr  dst
0     0   to the left of    3
1     0  to the right of   21
2     0  to the right of    5
3     2               on    6
4     2  to the right of   15
5     2  to the right of   12
6     2  to the right of   14
7     3  to the right of    0
8     3  to the right of   12
9     3  to the right of   15
10    5  to the right of   17
11    5  to the right of   19
12    5               on    4
13    5   to the left of    0
14    5   to the left of   22
15    5  to the right of   11
16    5   to the left of   12
17    5   to the left of   15
18    6  to the right of   15
19    6  to the right of   14
20    6  to the right of   12
21    7  to the right of   13
22    9               in   20
23   11   to the left of    5
24   11  to the right of   17
25   12   to the left of    3
26   12  to the right of    5
27   12   to the left of   14
28   12   to the left of    6
29   12   to the left of    2
30   12   to the left of   15
31   13   to the left of    7
32   14   to the left of    6
33   14  to the right of   12
34   14  to the right of   15
35   14   to the left of    2
36   15  to the right of    5
37   15   to the left of    6
38   15  to the right of   12
39   15   to the left of   14
40   15   to the left of    3
41   15   to the left of    2
42   16               in   20
43   17               in   20
44   17   to the left of    5
45   17   to the left of   19
46   17   to the left of   11
47   18               in   20
48   19  to the right of   17
49   19   to the left of    5
50   21   to the left of    0
51   22  to the right of    5