Are the men on the train tracks?
Yes, the men are on the train tracks.
    src        edge_attr  dst
0     2  to the right of   13
1     2   to the left of   11
2     2               on   12
3     2   to the left of    7
4     4  to the right of   17
5     4   to the left of    9
6     4  to the right of    8
7     5   to the left of   18
8     5   to the left of   14
9     6  to the right of   17
10    6  to the right of   10
11    6  to the right of   14
12    6  to the right of   18
13    7  to the right of    2
14    7  to the right of   13
15    7  to the right of   17
16    7   to the left of   11
17    8   to the left of    4
18    8               of   10
19    8   to the left of   14
20    9  to the right of   10
21    9  to the right of    4
22   10   to the left of    9
23   10   to the left of    6
24   11  to the right of    7
25   11               on   12
26   11  to the right of   17
27   11  to the right of    2
28   12   to the left of   15
29   12  to the right of   16
30   12  to the right of   17
31   13   to the left of    2
32   13   to the left of    7
33   14  to the right of    8
34   14  to the right of   17
35   14  to the right of    5
36   14   to the left of    6
37   15  to the right of   12
38   15  to the right of   17
39   16   to the left of   12
40   17   to the left of    4
41   17   to the left of    6
42   17   to the left of    7
43   17   to the left of   18
44   17   to the left of   14
45   17   to the left of   15
46   17   to the left of   12
47   17   to the left of   11
48   18   to the left of    6
49   18  to the right of    5
50   18  to the right of   17