What color is the cow to the right of the other cow?
The cow is black.
    src        edge_attr  dst
0     1   to the left of    7
1     1  to the right of   12
2     2               in    3
3     2   to the left of    8
4     2  to the right of   11
5     2   to the left of    4
6     4  to the right of   11
7     4  to the right of    2
8     4   to the left of    8
9     4  to the right of    5
10    5   to the left of    8
11    5   to the left of   10
12    5   to the left of    4
13    7  to the right of    1
14    7  to the right of   12
15    8  to the right of   10
16    8  to the right of    5
17    8   to the left of   14
18    8  to the right of    4
19    8  to the right of    2
20   10  to the right of    5
21   10   to the left of    8
22   11   to the left of    4
23   11   to the left of   12
24   11   to the left of    2
25   12  to the right of   11
26   12   to the left of    7
27   12   to the left of    1
28   14  to the right of    8
29   14  to the right of   15
30   15   to the left of   14