What do you think is that airplane in front of?
The airplane is in front of the trees.
    src        edge_attr  dst
0     1  to the right of   12
1     1               of    6
2     4   to the left of   16
3     4  to the right of   19
4     4  to the right of    8
5     4   to the left of   17
6     4           facing    6
7     6      in front of   13
8     6            above    0
9     8           beside   18
10    8   to the left of    4
11    8   to the left of   19
12    8  to the right of   11
13   11           beside   18
14   11   to the left of    8
15   11   to the left of   19
16   12   to the left of    1
17   12  on the front of    6
18   13           behind    6
19   13   to the left of   15
20   15  to the right of   13
21   16           facing    6
22   16  to the right of    4
23   16  to the right of   17
24   16  to the right of   19
25   17   to the left of   16
26   17  to the right of   19
27   17  to the right of    4
28   19           facing    6
29   19   to the left of   16
30   19   to the left of   17
31   19  to the right of    8
32   19  to the right of   11
33   19   to the left of    4