What is the man to the left of the bottle using, a phone or a camera?
The man is using a phone.
     src        edge_attr  dst
0      0   to the left of    5
1      0   to the left of   20
2      0   to the left of    9
3      1   to the left of    4
4      1   to the left of    8
..   ...              ...  ...
140   20   to the left of   12
141   20   to the left of   15
142   21  to the right of    4
143   21  to the right of    5
144   21  to the right of   20

[145 rows x 3 columns]