Are there any white windows?
No, there are windows but they are black.
    src        edge_attr  dst
0     1   to the left of    2
1     2       walking to    4
2     2             near    4
3     2           beside    4
4     2          next to    4
5     2  to the right of    4
6     2  to the right of    1
7     3  to the right of    6
8     4   to the left of    2
9     4   to the left of    5
10    4               on    0
11    4             near    2
12    4        on top of    0
13    5  to the right of    4
14    6               of    4
15    6   to the left of    3