Which kind of vehicle is to the right of the man?
The vehicle is a bus.
    src        edge_attr  dst
0     0  to the right of   13
1     0   to the left of    6
2     0  to the right of    7
3     0  to the right of    8
4     0               on   14
5     3  to the right of   10
6     4  to the right of    7
7     4   to the left of    6
8     4  to the right of   13
9     6  to the right of    0
10    6  to the right of   11
11    6  to the right of   13
12    6  to the right of   14
13    6  to the right of    4
14    6  to the right of    8
15    7   to the left of    0
16    7   to the left of   13
17    7   to the left of   11
18    7   to the left of   14
19    7   to the left of    4
20    7   to the left of    8
21    8   to the left of    0
22    8  to the right of   13
23    8   to the left of    6
24    8  to the right of    7
25   10   to the left of    3
26   11   to the left of    6
27   11  to the right of   13
28   11  to the right of    7
29   13   to the left of    4
30   13   to the left of    0
31   13   to the left of    8
32   13   to the left of   14
33   13  to the right of    7
34   13   to the left of    6
35   13       driving on    5
36   13   to the left of   11
37   14   to the left of    6
38   14  to the right of    7
39   14  to the right of   13