Where is the dog?
The dog is on the floor.
    src        edge_attr  dst
0     0   to the left of    7
1     0   to the left of   22
2     0  to the right of   21
3     1               of    8
4     1   to the left of   22
..  ...              ...  ...
71   21               on   17
72   21   to the left of    8
73   22  to the right of   14
74   22  to the right of    0
75   22  to the right of    1

[76 rows x 3 columns]