Is the sky above the trees both open and overcast?
No, the sky is open but clear.
    src        edge_attr  dst
0     0   to the left of   12
1     0   to the left of    6
2     1   to the left of   12
3     1   to the left of    6
4     2  to the right of    4
5     2  to the right of   12
6     3   running across    2
7     4   to the left of   13
8     4   to the left of    2
9     4   to the left of    5
10    5   to the left of    7
11    5  to the right of    4
12    6  to the right of    1
13    6  to the right of    0
14    7  to the right of   13
15    7  to the right of    5
16    8  to the right of   12
17    9  to the right of   12
18   10  to the right of   12
19   11            above   12
20   12  to the right of    0
21   12  to the right of    1
22   12   to the left of    2
23   12   to the left of    8
24   12   to the left of    9
25   12   to the left of   10
26   12   to the left of   13
27   13  to the right of    4
28   13  to the right of   12
29   13            below   11
30   13   to the left of    7