What animal does the rope lead?
The rope leads the cow.
    src        edge_attr  dst
0     0   to the left of   12
1     0      in front of   16
2     0  to the right of   16
3     1          leading    0
4     1  to the right of    9
5     1  to the right of   14
6     1  to the right of    2
7     1  to the right of   11
8     1  to the right of    8
9     1  to the right of    4
10    1          holding    6
11    2   to the left of   13
12    2   to the left of   12
13    2   to the left of    1
14    4   to the left of    1
15    5  to the right of    8
16    5  to the right of    9
17    5  to the right of   11
18    5  to the right of   14
19    6  to the right of    7
20    6          leading    0
21    6  to the right of   15
22    7   to the left of    9
23    7   to the left of    6
24    8   to the left of    5
25    8   to the left of    1
26    9   to the left of    5
27    9  to the right of    7
28    9   to the left of    1
29    9  to the right of   15
30   11   to the left of    1
31   11   to the left of    5
32   12  to the right of    0
33   12  to the right of   13
34   12  to the right of    2
35   13   to the left of   12
36   13  to the right of    2
37   14   to the left of    5
38   14   to the left of    1
39   15   to the left of    9
40   15   to the left of    6
41   16           behind    0
42   16   to the left of    0