What is the vehicle that the man to the right of the person is looking at?
The vehicle is a train.
    src        edge_attr  dst
0     1  to the right of   19
1     1  to the right of   18
2     1  to the right of    9
3     2   to the left of   12
4     4  to the right of   17
5     6      looking out    2
6     6   to the left of   12
7     7  to the right of   14
8     7  to the right of   16
9     7  to the right of    8
10    7   to the left of   18
11    7   to the left of   19
12    8   to the left of    7
13    8   to the left of   15
14    8   to the left of    9
15    9   to the left of    1
16    9  to the right of   14
17    9  to the right of   15
18    9  to the right of    8
19   10   to the left of   11
20   11  to the right of   10
21   12       looking at   13
22   12  to the right of   16
23   12  to the right of    2
24   12  to the right of    6
25   14   to the left of    7
26   14               at   20
27   14   to the left of   15
28   14   to the left of    9
29   15   to the left of   19
30   15   to the left of   18
31   15  to the right of   14
32   15  to the right of    8
33   15   to the left of    9
34   16   to the left of   12
35   16   to the left of    7
36   16   to the left of   18
37   17   to the left of    4
38   18   to the left of    1
39   18   to the left of   19
40   18  to the right of   15
41   18  to the right of    7
42   18  to the right of   16
43   19  to the right of   18
44   19  to the right of   15
45   19  to the right of    7
46   19   to the left of    1