Does the sky look clear?
No, the sky is cloudy.
    src        edge_attr  dst
0     1  to the right of    9
1     1   to the left of    6
2     2  to the right of   10
3     4  to the right of   10
4     5  to the right of    9
5     6  to the right of    9
6     6  to the right of    1
7     9   to the left of    5
8     9   to the left of    1
9     9   to the left of    6
10   10   to the left of    2
11   10   to the left of    4