What is pushed by the person to the right of the dog?
The stroller is pushed by the man.
     src        edge_attr  dst
0      1               in   18
1      1   to the left of   41
2      1   to the left of    4
3      1   to the left of    9
4      2  to the right of    7
..   ...              ...  ...
228   45  to the right of    6
229   45   to the left of   44
230   45  to the right of   42
231   45  to the right of   39
232   45  to the right of   24

[233 rows x 3 columns]