Are there trains or doors in the scene?
No, there are no doors or trains.
     src        edge_attr  dst
0      0  to the right of    6
1      1  to the right of    6
2      4  to the right of   22
3      4  to the right of    6
4      6   to the left of    0
..   ...              ...  ...
103   26   to the left of    7
104   26   to the left of   16
105   26   to the left of   15
106   26  to the right of   21
107   26  to the right of   22

[108 rows x 3 columns]