Are there any curtains to the right of the mirror on the left?
No, there is a bus to the right of the mirror.
    src        edge_attr  dst
0     0   to the left of   16
1     0   to the left of   13
2     0   to the left of    6
3     0   to the left of    5
4     1   to the left of   20
..  ...              ...  ...
63   21   to the left of   11
64   21   to the left of   18
65   22  to the right of    8
66   23   to the left of   20
67   23  to the right of    2

[68 rows x 3 columns]