Do you see any helmets to the right of the boy?
No, there is a man to the right of the boy.
    src        edge_attr  dst
0     0  to the right of   18
1     1           behind   21
2     1           behind   14
3     1           behind    2
4     2   to the left of   21
..  ...              ...  ...
73   24   to the left of    9
74   25  to the right of   16
75   25   to the left of    9
76   25  to the right of   18
77   25   to the left of   23

[78 rows x 3 columns]