Do you see any door or chair?
Yes, there is a door.
    src        edge_attr  dst
0     0   to the left of   11
1     0   to the left of    3
2     0   to the left of   17
3     1  to the right of   19
4     2  to the right of   19
..  ...              ...  ...
71   20   to the left of   13
72   20   to the left of    3
73   20   to the left of    2
74   21   to the left of   15
75   21  to the right of   14

[76 rows x 3 columns]