What vehicles are to the right of the locomotive?
The vehicles are cars.
    src        edge_attr  dst
0     0   to the left of   10
1     1   to the left of   17
2     1   to the left of   15
3     1   to the left of   14
4     1   to the left of    5
5     3  to the right of   14
6     3  to the right of    9
7     3  to the right of   15
8     3  to the right of    4
9     4  to the right of   15
10    4   to the left of    3
11    4  to the right of   14
12    5  to the right of    1
13    6   to the left of   11
14    6  to the right of   15
15    9  to the right of   15
16    9   to the left of    3
17   10  to the right of    0
18   11  to the right of    6
19   14   to the left of    3
20   14   to the left of    4
21   14  to the right of    1
22   15   to the left of    9
23   15  to the right of    1
24   15   to the left of    3
25   15   to the left of    6
26   15   to the left of    4
27   15   to the left of   17
28   17  to the right of   15
29   17  to the right of    1