Is the large truck to the left or to the right of the fence on the right side?
The truck is to the left of the fence.
    src        edge_attr  dst
0     0               on   14
1     0  to the right of   14
2     0   to the left of   19
3     1   to the left of    5
4     2   to the left of   18
..  ...              ...  ...
59   20  to the right of    8
60   20   to the left of   11
61   21  to the right of    6
62   21  to the right of   15
63   21  to the right of   17

[64 rows x 3 columns]