Who is in front of the white vehicle?
The people are in front of the bus.
    src        edge_attr  dst
0     0   to the left of    9
1     1  to the right of    4
2     1  to the right of    7
3     2           behind    7
4     4   to the left of    1
5     4   to the left of   11
6     4  to the right of   10
7     7      in front of    2
8     7  to the right of   10
9     7   to the left of    1
10    7   to the left of   11
11    9  to the right of    0
12   10   to the left of    7
13   10   to the left of    4
14   11  to the right of    7
15   11  to the right of    4
16   12   on the back of    2