Are there either nightstands or mirrors that are not round?
No, there is a mirror but it is round.
    src        edge_attr  dst
0     0   to the left of   19
1     0   to the left of    4
2     0  to the right of    1
3     0               on   17
4     1   to the left of    9
..  ...              ...  ...
68   17   to the left of    4
69   17   to the left of    1
70   17   to the left of   15
71   19     hanging from   18
72   19  to the right of    0

[73 rows x 3 columns]