What does the brown dog sleep in?
The dog sleeps in the bed.
    src        edge_attr  dst
0     0  to the right of   20
1     0  to the right of    8
2     1   to the left of   20
3     1   to the left of   10
4     1   to the left of    7
..  ...              ...  ...
59   24      sleeping in    3
60   24   to the left of   12
61   24   to the left of    6
62   24      sleeping on    3
63   24  to the right of   17

[64 rows x 3 columns]