What is under the sign on the wall?
The toilet is under the sign.
     src        edge_attr  dst
0      0   to the left of    2
1      0   to the left of    1
2      0   to the left of    7
3      1   to the left of   15
4      1               on    2
..   ...              ...  ...
105   20   to the left of   14
106   21  to the right of    7
107   21   to the left of   14
108   21  to the right of    3
109   21               in   19

[110 rows x 3 columns]