What type of vehicle is in this photograph?
The vehicle is a train.
    src        edge_attr  dst
0     0   to the left of    4
1     2       sitting in   12
2     2  to the right of    3
3     2   to the left of    7
4     2   to the left of   11
5     3   to the left of    2
6     3   to the left of    8
7     3  to the right of    6
8     4  to the right of    0
9     5  to the right of    6
10    6   to the left of   10
11    6   to the left of    3
12    6   to the left of    8
13    6   to the left of    5
14    7  to the right of    8
15    7  to the right of    2
16    8  to the right of    3
17    8   to the left of    7
18    8  to the right of    6
19   10  to the right of    6
20   11   sitting inside   12
21   11  to the right of    2
22   12               in    1