What is the building behind the elephant surrounded by?
The building is surrounded by the wall.
    src        edge_attr  dst
0     0  to the right of    1
1     0  to the right of    7
2     0  to the right of   10
3     0  to the right of    2
4     0  to the right of   11
5     1      in front of   13
6     1      standing in   13
7     1   to the left of    0
8     1  to the right of    9
9     1  to the right of    3
10    1  to the right of    5
11    1  to the right of    4
12    2   to the left of    0
13    2  to the right of   11
14    2  to the right of   10
15    3   to the left of    1
16    4   to the left of    5
17    4   to the left of   11
18    4   to the left of    1
19    4   to the left of   12
20    5   to the left of    1
21    5   to the left of   12
22    5  to the right of    4
23    5   to the left of   11
24    6               of   13
25    7   to the left of    0
26    8      surrounding   13
27    9   to the left of    1
28   10  to the right of   12
29   10   to the left of    0
30   10   to the left of    2
31   11   to the left of    0
32   11               of    1
33   11   to the left of    2
34   11  to the right of    4
35   11  to the right of    5
36   12               of    1
37   12  to the right of    5
38   12  to the right of    4
39   12   to the left of   10
40   13    surrounded by    8
41   13           behind    1