What hangs on the building?
The poster hangs on the building.
    src        edge_attr  dst
0     0               on    7
1     1   to the left of    9
2     1               on    7
3     2     hanging from    5
4     3               on    4
5     3             near   10
6     4  to the right of    5
7     5               in    3
8     5   to the left of    4
9     6  to the right of   14
10    6               of    8
11    7               on    8
12    7            below   12
13    9  to the right of    1
14    9               on    7
15   10          next to    3
16   10             near    3
17   11               on   13
18   11  to the right of   14
19   12            above    7
20   12          holding    7
21   13               of    8
22   13  to the right of   14
23   14   to the left of   13
24   14   to the left of    6
25   14       hanging on    8
26   14   to the left of   11