Which side is the long vehicle on, the left or the right?
The bus is on the right of the image.
     src        edge_attr  dst
0      0   to the left of    5
1      0  to the right of    4
2      0   to the left of   11
3      0   to the left of    7
4      1  to the right of    4
..   ...              ...  ...
116   20  to the right of    3
117   20   to the left of    5
118   21   to the left of   13
119   22   to the left of   11
120   22               of   21

[121 rows x 3 columns]