What is on the wall?
The decoration is on the wall.
    src        edge_attr  dst
0     0   to the left of   10
1     0   to the left of    7
2     0   to the left of   19
3     0   to the left of    6
4     0   to the left of   12
..  ...              ...  ...
89   19  to the right of   11
90   19   to the left of    2
91   19   to the left of   18
92   19   to the left of    3
93   19  to the right of    0

[94 rows x 3 columns]