Which vehicle is silver, the bus or the car?
The car is silver.
    src        edge_attr  dst
0     0               on    2
1     0      in front of    8
2     0   to the left of    5
3     1  to the right of    7
4     1  to the right of    6
5     1  to the right of    4
6     1  to the right of    3
7     2   to the left of    5
8     2   to the left of    4
9     2   to the left of    7
10    2   to the left of    6
11    3   to the left of    4
12    3   to the left of    1
13    3   to the left of    5
14    4  to the right of    2
15    4   to the left of    1
16    4  to the right of    3
17    4   to the left of    5
18    5  to the right of    7
19    5  to the right of    0
20    5  to the right of    2
21    5  to the right of    3
22    5  to the right of    4
23    5  to the right of    6
24    6   to the left of    1
25    6   to the left of    5
26    6  to the right of    2
27    7   to the left of    1
28    7   to the left of    5
29    7  to the right of    2
30    8           behind    0