Where is the cow?
The cow is in the pasture.
    src         edge_attr  dst
0     0                in   14
1     0       standing on   18
2     0                on   18
3     0    to the left of   15
4     0   to the right of   18
5     0   to the right of   16
6     0   to the right of    2
7     0   to the right of   14
8     1   to the right of    3
9     1   to the right of   17
10    1   to the right of    6
11    1   to the right of   10
12    2    to the left of   13
13    2    to the left of   17
14    2    to the left of    6
15    2    to the left of    3
16    2    to the left of    0
17    2    to the left of   18
18    3    to the left of   17
19    3    to the left of    1
20    3   to the right of    2
21    3                in    1
22    3    to the left of   10
23    6   to the right of    2
24    6    to the left of   10
25    6    to the left of   17
26    6    to the left of    1
27    7                on   15
28    7   to the right of   16
29   10   to the right of    3
30   10   to the right of    6
31   10   to the right of   17
32   10    to the left of    1
33   11  on the bottom of    5
34   11   to the right of   13
35   11         on top of   13
36   13   to the right of    2
37   13    to the left of   11
38   14    to the left of    0
39   15   to the right of    0
40   16    to the left of    0
41   16    to the left of    7
42   17    to the left of   10
43   17   to the right of    3
44   17    to the left of    1
45   17   to the right of    2
46   17   to the right of    6
47   18    to the left of    0
48   18   to the right of    2