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