Are there dark windows or cars?
Yes, there is a dark window.
    src        edge_attr  dst
0     0   to the left of   17
1     2   to the left of   16
2     2  to the right of   15
3     2     hanging from    3
4     4  to the right of    9
..  ...              ...  ...
84   20   to the left of   10
85   20  to the right of   13
86   20   to the left of   11
87   20   to the left of   14
88   20        on top of   12

[89 rows x 3 columns]