What kind of aircraft is in front of the fog?
The aircraft is an airplane.
    src        edge_attr  dst
0     0      in front of    2
1     0      in front of    5
2     0            above    1
3     2           behind    0
4     4  to the right of    9
5     4  to the right of    6
6     5           behind    0
7     6  to the right of    7
8     6   to the left of    4
9     7   to the left of    6
10    9   to the left of    4