The bus is in front of what?
The bus is in front of the car.
    src        edge_attr  dst
0     0   to the left of    5
1     0  to the right of    2
2     0  to the right of   10
3     0   to the left of    7
4     0   to the left of   11
5     1        on top of    8
6     1   to the left of    4
7     1  to the right of    2
8     1      in front of    9
9     2   to the left of    0
10    2   to the left of   13
11    2   to the left of    1
12    2  to the right of    9
13    2   to the left of   16
14    4  to the right of   13
15    4  to the right of    1
16    5        on top of    7
17    5  to the right of    0
18    5  to the right of   16
19    6  to the right of   12
20    7  to the right of    0
21    7  to the right of   10
22    8   to the left of   12
23    9        on top of    8
24    9   to the left of   10
25    9   to the left of    2
26    9           behind    1
27   10        on top of    7
28   10        on top of    2
29   10               at    4
30   10   to the left of    7
31   10   to the left of    0
32   10   to the left of   16
33   10  to the right of    9
34   11        on top of    7
35   11  to the right of   16
36   11  to the right of    0
37   11  to the right of   12
38   12  to the right of    8
39   12   to the left of    6
40   12   to the left of   11
41   13        on top of    7
42   13   to the left of    4
43   13  to the right of    2
44   13  to the right of   15
45   13  to the right of   14
46   14   to the left of   15
47   14   to the left of   13
48   15  to the right of   14
49   15   to the left of   13
50   16        on top of    8
51   16  to the right of    2
52   16   to the left of    5
53   16   to the left of   11
54   16  to the right of   10