Is the van to the right or to the left of the man on the street?
The van is to the left of the man.
     src        edge_attr  dst
0      0  to the right of   36
1      0  to the right of   37
2      0  to the right of   25
3      0  to the right of   12
4      0  to the right of   14
..   ...              ...  ...
386   38  to the right of   14
387   38   to the left of   13
388   39   to the left of   12
389   39   to the left of   15
390   40   to the left of   12

[391 rows x 3 columns]