Which kind of vehicle is small?
The vehicle is a train car.
     src        edge_attr  dst
0      0  to the right of   11
1      0  to the right of   14
2      0  to the right of   29
3      0  to the right of   26
4      0  to the right of   24
..   ...              ...  ...
144   33  to the right of    9
145   33   to the left of   28
146   33   to the left of   27
147   33  to the right of    1
148   33   on the side of    8

[149 rows x 3 columns]