Are there trains in the image?
No, there are no trains.
     src        edge_attr  dst
0      0   to the left of   18
1      0   to the left of   17
2      0  to the right of   20
3      0  to the right of    7
4      0   to the left of    5
..   ...              ...  ...
101   25   to the left of    5
102   25   to the left of   18
103   25  to the right of   22
104   25  to the right of   23
105   25  to the right of   24

[106 rows x 3 columns]