How large is that plane?
The plane is small.
    src        edge_attr  dst
0     0   to the left of    8
1     1   to the left of    8
2     2   to the left of    3
3     2   to the left of    5
4     2   to the left of    4
5     3  to the right of    4
6     3  to the right of    2
7     4   to the left of    3
8     4  to the right of    2
9     5  to the right of    2
10    6        flying in    7
11    6               in    7
12    8  to the right of    1
13    8  to the right of    0