Behind which kind of animal is the building?
The building is behind the horse.
    src        edge_attr  dst
0     0  to the right of   18
1     0  to the right of    3
2     0  to the right of    4
3     0   to the left of    6
4     0   to the left of    9
5     1          pulling   11
6     1      in front of    8
7     1      in front of   12
8     1  to the right of   10
9     1  to the right of    7
10    1  to the right of    5
11    2  to the right of   13
12    3   to the left of    0
13    3   to the left of    4
14    3   to the left of   18
15    4   to the left of   18
16    4  to the right of    3
17    4   to the left of    0
18    5   to the left of    1
19    5   to the left of    8
20    5   to the left of   19
21    6  to the right of    0
22    6   to the left of    9
23    6  to the right of   18
24    7   to the left of    1
25    7  to the right of   15
26    7  to the right of   13
27    8  to the right of   19
28    8   to the left of   14
29    8  to the right of    5
30    8  to the right of   10
31    9  to the right of    6
32    9  to the right of    0
33   10   to the left of    1
34   10   to the left of   19
35   10   to the left of    8
36   11  to the right of   15
37   11        pulled by    1
38   12           behind    1
39   13          wearing   18
40   13   to the left of    7
41   13   to the left of    2
42   14  to the right of   19
43   14  to the right of    8
44   15   to the left of    7
45   15   to the left of   11
46   18   to the left of    6
47   18  to the right of    3
48   18   to the left of    0
49   18  to the right of    4
50   19  to the right of    5
51   19   to the left of   14
52   19  to the right of   10
53   19   to the left of    8