What is leaning on the building that is behind the wires?
The ladder is leaning on the building.
    src        edge_attr  dst
0     0   to the left of    2
1     2           behind    9
2     2  to the right of    0
3     2             near    4
4     3       leaning on    2
5     3   on the side of    2
6     3   to the left of    4
7     4             near    2
8     4   on the side of    2
9     4        on top of    2
10    4  to the right of    3
11    5            above    2
12    5      filled with   10
13    6        on top of    2
14    6            above    2
15    6               on   11
16    6   to the left of    8
17    8  to the right of    6
18    9   on the side of    2
19    9      in front of    2