What is the man to the left of the van doing?
The man is walking.
     src        edge_attr  dst
0      0           behind   17
1      0  to the right of   10
2      0   to the left of   16
3      0   to the left of   21
4      0  to the right of    9
..   ...              ...  ...
102   21   to the left of    5
103   21   to the left of    6
104   21  to the right of   18
105   21  to the right of   16
106   21  to the right of   17

[107 rows x 3 columns]