What is in front of the building?
The bridge is in front of the building.
    src        edge_attr  dst
0     0      in front of   15
1     1   to the left of    9
2     1   to the left of    2
3     1   to the left of    4
4     2  to the right of    4
5     2  to the right of    3
6     2  to the right of    1
7     2           behind    9
8     3   to the left of    2
9     3               on    1
10    3   to the left of    4
11    3   to the left of    9
12    4  to the right of    3
13    4  to the right of    1
14    4             near    9
15    4   to the left of    2
16    6  to the right of   13
17    9     hanging from    5
18    9  to the right of    1
19    9  to the right of    3
20    9      in front of    2
21    9             near    4
22   12            above   15
23   13   to the left of    6
24   14               on   15
25   15           behind    0