Who is the train carrying?
The train is carrying passengers.
    src        edge_attr  dst
0     0   to the left of    7
1     0         carrying   10
2     0             near    8
3     0   to the left of   13
4     0  to the right of    8
5     0   to the left of    1
6     0  to the right of    3
7     0   to the left of    6
8     0   to the left of    9
9     1  to the right of    0
10    1  to the right of   10
11    1   to the left of    9
12    1   to the left of    7
13    1   to the left of    6
14    2  to the right of    5
15    2           beside    0
16    2  to the right of    8
17    2  to the right of    3
18    3   to the left of    2
19    3   to the left of    0
20    4   to the left of   13
21    4  to the right of   12
22    4  to the right of   14
23    5   to the left of    2
24    6  to the right of    0
25    6  to the right of    7
26    6  to the right of    1
27    6  to the right of   13
28    7   to the left of    6
29    7  to the right of    0
30    7  to the right of    1
31    8             near    0
32    8               on    3
33    8          next to    0
34    8   to the left of    2
35    8   to the left of   12
36    8   to the left of    0
37    9  to the right of    0
38    9  to the right of   10
39    9  to the right of    1
40    9  to the right of   13
41   10  to the right of   14
42   10   to the left of    1
43   10   to the left of   13
44   10   to the left of    9
45   11            above    0
46   12   to the left of    4
47   12  to the right of    8
48   13   to the left of    6
49   13  to the right of   10
50   13  to the right of    0
51   13  to the right of    4
52   13   to the left of    9
53   14               of    0
54   14   to the left of   10
55   14   to the left of    4