Do you think the sky is clear?
No, the sky is cloudy.
    src        edge_attr  dst
0     0  to the right of    3
1     0   to the left of   12
2     0  to the right of    4
3     0   to the left of    2
4     1               in   13
5     2  to the right of    0
6     3   to the left of    0
7     3  to the right of    4
8     4   to the left of    0
9     4   to the left of    3
10    5      in front of    6
11    6           behind    5
12    8   to the left of    9
13    9  to the right of    8
14    9  to the right of   14
15   12  to the right of    0
16   14   to the left of    9