Is this a bed or a couch?
This is a bed.
    src        edge_attr  dst
0     0   to the left of   10
1     0   to the left of    5
2     0   to the left of    2
3     1   to the left of   15
4     1  to the right of   10
..  ...              ...  ...
86   18   to the left of    7
87   19  to the right of    1
88   19  to the right of    9
89   19  to the right of   18
90   19  to the right of   12

[91 rows x 3 columns]