Is the truck to the left of a mirror?
No, the truck is to the left of the taxi.
    src        edge_attr  dst
0     0  on the front of    7
1     0  to the right of   17
2     1   to the left of   21
3     1   to the left of    3
4     1   to the left of    2
..  ...              ...  ...
65   19  to the right of   20
66   20   to the left of    7
67   20   to the left of   19
68   20  to the right of   15
69   21  to the right of    1

[70 rows x 3 columns]