Is the boy to the left or to the right of the skateboard which is to the left of the wheelchair?
The boy is to the left of the skateboard.
     src        edge_attr  dst
0      0   to the left of   10
1      0   to the left of    7
2      0  to the right of    9
3      0   to the left of    8
4      1  to the right of    5
..   ...              ...  ...
116   19  to the right of   17
117   19  to the right of   12
118   20  to the right of    8
119   21   to the left of    6
120   21  to the right of    8

[121 rows x 3 columns]