What is on the white wall?
The sticker is on the wall.
    src        edge_attr  dst
0     0               on    8
1     1               on    3
2     1  to the right of    8
3     2  to the right of    8
4     3  to the right of    8
..  ...              ...  ...
65   17   to the left of    7
66   18  to the right of    5
67   18     reflected in   14
68   18  to the right of    4
69   19   to the left of    9

[70 rows x 3 columns]