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