Which kind of vehicle is in front of the buildings?
The vehicle is a car.
    src        edge_attr  dst
0     0   to the left of   12
1     0   to the left of    4
2     2           behind   10
3     3   to the left of    8
4     3   to the left of    7
5     3   to the left of   12
6     3   to the left of    9
7     3   to the left of    6
8     3   to the left of    5
9     4  to the right of    0
10    5   to the left of    8
11    5   to the left of    6
12    5  to the right of    3
13    6  to the right of    5
14    6  to the right of    3
15    7  to the right of    3
16    8  to the right of    3
17    8  to the right of    9
18    8  to the right of    5
19    9   to the left of    8
20    9  to the right of    3
21   10      in front of    2
22   11               in   10
23   12  to the right of    0
24   12  to the right of    3