Is the van to the left or to the right of the people that are wearing a shirt?
The van is to the right of the people.
     src        edge_attr  dst
0      0   to the left of   32
1      0  to the right of   22
2      0   to the left of   11
3      0   to the left of    9
4      1   to the left of   11
..   ...              ...  ...
153   33   to the left of    7
154   33  to the right of   15
155   33   to the left of   11
156   33   to the left of   27
157   33  to the right of   23

[158 rows x 3 columns]