Is the plastic bag to the left or to the right of the guy?
The bag is to the left of the guy.
     src        edge_attr  dst
0      0   to the left of   15
1      0   to the left of   16
2      0  to the right of   19
3      0  to the right of   20
4      0   to the left of   22
..   ...              ...  ...
186   25   to the left of   18
187   26   to the left of    9
188   26   to the left of   14
189   26   to the left of    2
190   26   to the left of    5

[191 rows x 3 columns]