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