Who sits on the chair?
The man sits on the chair.
    src        edge_attr  dst
0     0   to the left of   13
1     0   to the left of   14
2     1   to the left of   18
3     1   to the left of   13
4     2   to the left of   10
..  ...              ...  ...
71   18  to the right of   10
72   19   to the left of   10
73   19   to the left of   15
74   19   to the left of    3
75   20  to the right of   17

[76 rows x 3 columns]