Are the cars to the left of a truck?
Yes, the cars are to the left of a truck.
    src        edge_attr  dst
0     0  to the right of    7
1     0        on top of    1
2     0  to the right of    1
3     1   to the left of    0
4     2        parked in    5
..  ...              ...  ...
68   22   to the left of   13
69   22   to the left of   10
70   22  to the right of    2
71   22          next to   21
72   22   to the left of    8

[73 rows x 3 columns]