Is the boy to the right or to the left of the girl that is on the ottoman?
The boy is to the left of the girl.
     src        edge_attr  dst
0      0   to the left of   11
1      0  to the right of   21
2      0  to the right of   20
3      0   to the left of   15
4      0  to the right of   14
..   ...              ...  ...
134   22  to the right of    7
135   22   to the left of    4
136   22  to the right of    5
137   22  to the right of   20
138   22   to the left of    0

[139 rows x 3 columns]