What is the dog sitting on?
The dog is sitting on the ground.
    src        edge_attr  dst
0     0   growing behind   18
1     0  to the right of   14
2     0  to the right of   15
3     0  to the right of   19
4     0   to the left of    8
..  ...              ...  ...
70   19   to the left of   15
71   19   to the left of   11
72   19       sitting on   18
73   20   to the left of   15
74   20   to the left of   12

[75 rows x 3 columns]