What is the airplane in front of?
The plane is in front of the trees.
    src        edge_attr  dst
0     0   to the left of   10
1     1               by    4
2     1          next to    5
3     1             near    5
4     4               on    5
5     4      in front of   10
6     4   to the left of   10
7     5             near    1
8     7   to the left of   10
9    10  to the right of    4
10   10  to the right of    7
11   10   on the edge of   11
12   10           behind    4
13   10  to the right of    0