Do you see a train or a bus in the scene?
No, there are no trains or buses.
     src        edge_attr  dst
0      0  to the right of   21
1      0  to the right of   20
2      0  to the right of   22
3      1  to the right of   18
4      1  to the right of   16
..   ...              ...  ...
116   25   to the left of    7
117   26  to the right of   22
118   26  to the right of   21
119   26  to the right of   20
120   27  to the right of   25

[121 rows x 3 columns]