What is the vehicle that the building is behind of called?
The vehicle is a bus.
    src        edge_attr  dst
0     1  to the right of    9
1     1   to the left of    7
2     2   to the left of    7
3     3               on   11
4     3  to the right of   10
5     4             near    7
6     4  to the right of   10
7     6               of   10
8     6               on   10
9     7           behind   10
10    7  to the right of    1
11    7  to the right of   10
12    7  to the right of    2
13    7             near    4
14    8               on   10
15    9      in front of   10
16    9               of   10
17    9   to the left of    1
18   10               on    5
19   10           behind    9
20   10      in front of    7
21   10   to the left of    7
22   10   to the left of    4
23   10   to the left of   11
24   10   to the left of    3
25   11  to the right of   10