What is in front of the windows the building is with?
The tree is in front of the windows.
    src        edge_attr  dst
0     0  to the right of   12
1     0  to the right of    4
2     0  to the right of    8
3     0  to the right of    5
4     1  to the right of    3
5     1  to the right of   10
6     1  to the right of    9
7     2           behind    7
8     3   to the left of    1
9     3  to the right of   10
10    3  to the right of    9
11    4  to the right of    5
12    4   to the left of    0
13    4  to the right of    8
14    5   to the left of    0
15    5   to the left of    4
16    5   to the left of   12
17    6   to the left of    8
18    8               on    7
19    8   to the left of    4
20    8   to the left of   12
21    8  to the right of    6
22    8   to the left of    0
23    9   to the left of    1
24    9      in front of   10
25    9   to the left of   11
26    9   to the left of    3
27   10   to the left of   11
28   10   to the left of    3
29   10   to the left of    1
30   10           behind    9
31   11  to the right of    9
32   11  to the right of   10
33   12  to the right of    8
34   12   to the left of    0
35   12  to the right of    5
36   13               on    8