Where is the airplane?
The airplane is in the sky.
    src        edge_attr  dst
0     0  to the right of   10
1     0  to the right of   11
2     1               in    3
3     2               on    4
4     5               in    3
5     6               on    4
6     8               of    1
7     9               in    3
8    10   to the left of    0
9    11               of    1
10   11   to the left of    0
11   12               in    3