What is on the wall?
The decorations are on the wall.
     src        edge_attr  dst
0      0   to the left of   15
1      0   to the left of   12
2      0  to the right of   19
3      0  to the right of    4
4      0   to the left of    3
..   ...              ...  ...
118   20   to the left of    8
119   20   to the left of    0
120   20   to the left of    3
121   20   to the left of    2
122   21   to the left of   11

[123 rows x 3 columns]