What is the vehicle that the building is behind of?
The vehicle is a car.
    src        edge_attr  dst
0     0   to the left of    1
1     0   to the left of    3
2     0   to the left of   13
3     1  to the right of    0
4     3               in   15
5     3               on   15
6     3  to the right of    0
7     4  to the right of   12
8     6               in    5
9     6  to the right of    7
10    6  to the right of    9
11    6  to the right of   10
12    7           beside   15
13    7               in    5
14    7  to the right of   10
15    7   to the left of    6
16    7  to the right of    8
17    7   to the left of   16
18    8   to the left of    7
19    9   to the left of    6
20   10           behind   14
21   10   to the left of    6
22   10   to the left of    7
23   12               on   15
24   12   to the left of   14
25   12   to the left of    4
26   13  to the right of    0
27   13               on   15
28   13               by   15
29   13               on    1
30   14               on   15
31   14      in front of   10
32   14  to the right of   12
33   15      in front of   10
34   16  to the right of    7
35   16               on    0