Is this a bus or a train?
This is a bus.
     src        edge_attr  dst
0      0   on the side of   23
1      0  to the right of   13
2      0  to the right of   11
3      0  to the right of   14
4      0  to the right of    1
..   ...              ...  ...
113   24   to the left of    3
114   24  on the front of   23
115   24  to the right of   18
116   26        on top of   25
117   27        on top of   25

[118 rows x 3 columns]