Which kind of vehicle is behind the airplane?
The vehicle is a car.
    src       edge_attr  dst
0     0           below    2
1     1           below    2
2     2            near    5
3     2     in front of    5
4     2            near    6
5     2           above    0
6     2     in front of    6
7     2              on    1
8     3  on the side of    2
9     5            near    2
10    5          behind    2
11    6            near    2
12    6          behind    2