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