What's in the sky?
The wires are in the sky.
    src        edge_attr  dst
0     0  to the right of    3
1     1   to the left of    8
2     1  to the right of   11
3     1   to the left of    9
4     1   to the left of   15
5     3   to the left of    8
6     3  to the right of   11
7     3   to the left of    0
8     6               in    2
9     8  to the right of    9
10    8  to the right of    1
11    8  to the right of    3
12    8  to the right of   15
13    9  to the right of   11
14    9  to the right of    1
15    9   to the left of    8
16   11   to the left of    9
17   11   to the left of    3
18   11   to the left of    1
19   15  to the right of    1
20   15   to the left of    8