Are there any cars to the right of the bus that is in the middle?
No, the car is to the left of the bus.
    src        edge_attr  dst
0     1   to the left of    6
1     1  to the right of    2
2     1  to the right of    9
3     1  to the right of   15
4     1   to the left of   11
5     2   to the left of    1
6     2   to the left of    9
7     2   to the left of    3
8     3  to the right of   12
9     3  to the right of    2
10    3  to the right of    8
11    3  to the right of   15
12    3  to the right of   16
13    3  to the right of    7
14    5   to the left of   14
15    5  to the right of   10
16    6  to the right of   13
17    6  to the right of   11
18    6  to the right of    1
19    7           beside   17
20    7   to the left of   15
21    7   to the left of    9
22    7   to the left of    3
23    8   to the left of    3
24    9  to the right of   15
25    9  to the right of   16
26    9  to the right of    2
27    9   to the left of    1
28    9  to the right of    7
29    9  to the right of   12
30   10   to the left of    5
31   10   to the left of   14
32   11  to the right of   13
33   11   to the left of    6
34   11  to the right of    1
35   12   to the left of   15
36   12   to the left of    3
37   12   to the left of    9
38   13   to the left of    6
39   13   to the left of   11
40   14  to the right of    5
41   14  to the right of   10
42   15   to the left of    9
43   15   to the left of    1
44   15  to the right of   12
45   15   to the left of    3
46   15  to the right of   16
47   15  to the right of    7
48   16   to the left of    3
49   16   to the left of   15
50   16   to the left of    9