What vehicle is to the left of the horse?
The vehicle is a tractor.
    src        edge_attr  dst
0     0  to the right of   11
1     0  to the right of   19
2     0  to the right of   13
3     0  to the right of    4
4     0  to the right of    1
..  ...              ...  ...
93   19  to the right of   11
94   19          wearing   13
95   19          wearing   16
96   20               on    8
97   20  to the right of    8

[98 rows x 3 columns]