Is the black dog to the right or to the left of the man with the bag?
The dog is to the right of the man.
    src        edge_attr  dst
0     0   to the left of   17
1     0   to the left of   10
2     1   to the left of   15
3     1   to the left of   14
4     1   to the left of   13
..  ...              ...  ...
83   21  to the right of    4
84   21  to the right of   11
85   21  to the right of   10
86   21  to the right of   19
87   21  to the right of    3

[88 rows x 3 columns]