What's in front of the building?
The toilet is in front of the building.
     src        edge_attr  dst
0      0  to the right of   15
1      0   to the left of    7
2      0  to the right of   11
3      0   to the left of    5
4      0  to the right of   10
..   ...              ...  ...
100   18   to the left of    5
101   18   to the left of    6
102   18   to the left of    8
103   20  to the right of    2
104   20           behind   15

[105 rows x 3 columns]