Is the dirty window black or yellow?
The window is black.
     src        edge_attr  dst
0      0   to the left of   17
1      0   to the left of   14
2      0   to the left of    1
3      0   to the left of    2
4      0   to the left of   19
..   ...              ...  ...
177   21  to the right of    6
178   21   to the left of   13
179   21  to the right of   18
180   21   to the left of   16
181   21   to the left of   15

[182 rows x 3 columns]