Are there airplanes above the trees that look dark?
Yes, there is an airplane above the trees.
   src        edge_attr  dst
0    0               in    7
1    1               of    3
2    1   to the left of    6
3    3      flying over    4
4    3            above    5
5    3            above    4
6    5               of    3
7    6               of    3
8    6  to the right of    1