What animal are the trees behind of, a zebra or a giraffe?
The trees are behind a zebra.
    src        edge_attr  dst
0     0  to the right of   14
1     0  to the right of   13
2     0  to the right of   20
3     1               of   13
4     1   to the left of    8
5     2           behind   13
6     2   to the left of    4
7     2   to the left of   17
8     2   to the left of   10
9     2   to the left of    5
10    2   to the left of   16
11    2   to the left of   13
12    3  to the right of   14
13    3  to the right of   13
14    4   to the left of   21
15    4   to the left of   20
16    4  to the right of    6
17    4  to the right of    2
18    5  to the right of    2
19    5  to the right of   16
20    6   to the left of    4
21    6   to the left of   13
22    7  to the right of   20
23    7  to the right of   13
24    8  to the right of    1
25    9  to the right of   21
26    9  to the right of   20
27    9  to the right of   13
28   10   to the left of   21
29   10  to the right of    2
30   10   to the left of   20
31   10  to the right of   16
32   13  to the right of    2
33   13      in front of    2
34   13   to the left of    0
35   13   to the left of    9
36   13   to the left of    3
37   13   to the left of    7
38   13  to the right of    6
39   13   to the left of   14
40   14   to the left of    3
41   14   to the left of    0
42   14  to the right of   13
43   16   to the left of   10
44   16   to the left of   17
45   16  to the right of    2
46   16   to the left of    5
47   17  to the right of    2
48   17  to the right of   16
49   20  to the right of   10
50   20   to the left of    9
51   20   to the left of    7
52   20  to the right of    4
53   20   to the left of    0
54   21  to the right of   10
55   21   to the left of    9
56   21  to the right of    4