Are there any people to the right of the train?
No, the person is to the left of the train.
    src        edge_attr  dst
0     0          wearing   14
1     0       walking on    2
2     0          wearing   15
3     0               on    2
4     0          wearing    7
5     0               on    4
6     0          holding    4
7     0               at    9
8     0          wearing    8
9     0     walking with    4
10    0             with    7
11    1  to the right of   10
12    1  to the right of    6
13    4               on    2
14    5               on   11
15    6   to the left of    1
16    7  to the right of   13
17    7   to the left of   12
18    7   to the left of   15
19    7   to the left of   14
20   10   to the left of   15
21   10               at    9
22   10               on    2
23   10   to the left of    1
24   12               of    0
25   12  to the right of    7
26   12  to the right of   13
27   13   to the left of   15
28   13               on    2
29   13               at    9
30   13   to the left of   12
31   13   to the left of   14
32   13   to the left of    7
33   14  to the right of   13
34   14  to the right of    7
35   15  to the right of    7
36   15  to the right of   13
37   15  to the right of   10