Where is this train?
The train is at the train station.
     src        edge_attr  dst
0      0  to the right of   28
1      0  to the right of   29
2      0  to the right of   31
3      0  to the right of   34
4      0   to the left of   35
..   ...              ...  ...
232   39   to the left of    5
233   39   to the left of   37
234   39   to the left of   38
235   39   to the left of   17
236   39  to the right of    0

[237 rows x 3 columns]