Is it overcast today?
No, it is cloudless.
    src        edge_attr  dst
0     0  to the right of    3
1     0  to the right of    1
2     0  to the right of    8
3     0  to the right of    7
4     1  to the right of    2
5     1   to the left of    0
6     1  to the right of   15
7     2   to the left of    7
8     2  to the right of    6
9     2   to the left of    8
10    2  to the right of   13
11    2  to the right of   16
12    2   to the left of    3
13    2   to the left of    1
14    3  to the right of   15
15    3   to the left of    7
16    3   to the left of    0
17    3  to the right of    2
18    4  to the right of   14
19    6   to the left of    2
20    6   to the left of   12
21    6   to the left of   15
22    7  to the right of    2
23    7   to the left of    0
24    7  to the right of    8
25    7  to the right of   15
26    7  to the right of    3
27    8   to the left of    0
28    8  to the right of    2
29    8   to the left of    7
30    8  to the right of   15
31    9   to the left of   10
32   10  to the right of    9
33   12   to the left of   15
34   12  to the right of    6
35   13   to the left of    2
36   13   to the left of   16
37   14   to the left of    4
38   15  to the right of    6
39   15   to the left of    7
40   15   to the left of    1
41   15   to the left of    8
42   15  to the right of   12
43   15   to the left of    3
44   16  to the right of   13
45   16   to the left of    2