What are the vehicles that the parking meter is in front of?
The vehicles are cars.
    src        edge_attr  dst
0     0          wearing   18
1     0  to the right of   23
2     0   to the left of   16
3     1  to the right of   17
4     1  to the right of   18
..  ...              ...  ...
84   24  to the right of   10
85   24  to the right of   12
86   25   to the left of   18
87   25   to the left of   17
88   25      in front of   20

[89 rows x 3 columns]