Is there any truck in this scene?
Yes, there is a truck.
    src        edge_attr  dst
0     0  to the right of    4
1     0   to the left of   16
2     0   to the left of   12
3     0   to the left of    2
4     1  to the right of    5
..  ...              ...  ...
74   20   to the left of   10
75   20  to the right of    3
76   20  to the right of    6
77   20  to the right of   18
78   20   to the left of   11

[79 rows x 3 columns]