What is the animal that is walking on the ground called?
The animal is a bull.
    src        edge_attr  dst
0     0   to the left of    5
1     0       walking on    9
2     0   to the left of    3
3     0   to the left of   14
4     0   to the left of   17
5     0   to the left of   18
6     0   to the left of    4
7     0   to the left of   11
8     0   to the left of   12
9     1   to the left of   17
10    2               on    0
11    2  to the right of   16
12    2  to the right of    7
13    2   to the left of   14
14    2   to the left of    5
15    3  to the right of    0
16    3   to the left of   12
17    3               of   18
18    4  to the right of    0
19    4  to the right of   13
20    4  to the right of    8
21    5  to the right of    0
22    5  to the right of    2
23    6  to the right of   16
24    6   to the left of   14
25    6  to the right of    8
26    7   to the left of   16
27    7   to the left of    2
28    8   to the left of   14
29    8   to the left of    6
30    8   to the left of    4
31   10   to the left of   11
32   11  to the right of    0
33   11  to the right of   10
34   12  to the right of    3
35   12  to the right of    0
36   13   to the left of    4
37   14  to the right of    8
38   14  to the right of    6
39   14  to the right of    2
40   14  to the right of    0
41   15   to the left of   18
42   15               of   18
43   16               of    0
44   16  to the right of    7
45   16   to the left of    2
46   16   to the left of    6
47   17  to the right of    0
48   17  to the right of    1
49   18  to the right of   15
50   18       walking on    9
51   18  to the right of    0