Are there both taxis and vans in this picture?
No, there is a taxi but no vans.
     src        edge_attr  dst
0      0  to the right of   30
1      0   to the left of   14
2      0   to the left of   13
3      0  to the right of   25
4      0  to the right of   24
..   ...              ...  ...
259   30   to the left of    0
260   30   to the left of   13
261   30  to the right of   10
262   30   to the left of   23
263   30   to the left of   14

[264 rows x 3 columns]