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