Is the little boy to the left or to the right of the man?
The boy is to the right of the man.
    src        edge_attr  dst
0     1   to the left of    4
1     1   to the left of    7
2     1  to the right of    2
3     1   to the left of   14
4     1  to the right of    6
..  ...              ...  ...
66   16  to the right of   11
67   16  to the right of    6
68   16   to the left of    7
69   16  to the right of    4
70   16  to the right of    1

[71 rows x 3 columns]