Is the skyscraper behind the sign?
Yes, the skyscraper is behind the sign.
    src        edge_attr  dst
0     0               on    1
1     0  to the right of    1
2     0      in front of    3
3     1   to the left of    3
4     1   to the left of    6
5     1   to the left of    4
6     1   to the left of    0
7     3           behind    0
8     3  to the right of    1
9     3   to the left of    7
10    4  to the right of    1
11    4               on    0
12    4   to the left of    5
13    5               on    0
14    5             near    6
15    5   to the left of    7
16    5  to the right of    4
17    5  to the right of    6
18    6  to the right of    1
19    6   to the left of    5
20    6             near    5
21    6               on    0
22    7               on    0
23    7  to the right of    3
24    7  to the right of    5