Are there any vans to the right of the car?
Yes, there is a van to the right of the car.
     src        edge_attr  dst
0      0          wearing    8
1      0  to the right of   30
2      0   to the left of   14
3      0   to the left of    3
4      0   to the left of    1
..   ...              ...  ...
174   30   to the left of    8
175   30   to the left of    4
176   30   to the left of   19
177   30   to the left of   13
178   30   on the side of   26

[179 rows x 3 columns]