What's flying in the sky?
The plane is flying in the sky.
    src        edge_attr  dst
0     0   to the left of   11
1     0   to the left of    3
2     0  to the right of    7
3     1               in   10
4     1        flying in   10
5     2   to the left of    8
6     2   to the left of    5
7     3  to the right of    9
8     3  to the right of    0
9     3  to the right of    6
10    5  to the right of    2
11    6   to the left of   11
12    6   to the left of    3
13    7   to the left of    0
14    7   to the left of   11
15    8  to the right of    2
16    9   to the left of   11
17    9   to the left of    3
18   11  to the right of    9
19   11  to the right of    0
20   11  to the right of    6
21   11  to the right of    7