Are there any goats or horses that are not black?
No, there are goats but they are black.
    src        edge_attr  dst
0     0           behind    1
1     0   to the left of   10
2     0   to the left of    3
3     0  to the right of    2
4     0   to the left of    5
5     0   to the left of    4
6     1      in front of    0
7     2   to the left of    9
8     2   to the left of    0
9     2   to the left of   13
10    3  to the right of    5
11    3  to the right of    0
12    4  to the right of    0
13    4  to the right of   13
14    4  to the right of    9
15    5   to the left of   10
16    5   to the left of    3
17    5  to the right of    0
18    5  to the right of    7
19    5  to the right of    6
20    6   to the left of    5
21    6   to the left of    7
22    6  to the right of   11
23    6  to the right of   15
24    7   to the left of    5
25    7  to the right of    6
26    7  to the right of   15
27    9   to the left of   13
28    9  to the right of    2
29    9   to the left of    4
30   10  to the right of   13
31   10  to the right of    5
32   10  to the right of    0
33   11   to the left of    6
34   11   to the left of   14
35   12               on    3
36   13   to the left of    4
37   13  to the right of    9
38   13  to the right of    2
39   13   to the left of   10
40   14  to the right of   15
41   14  to the right of   11
42   15   to the left of    6
43   15   to the left of   14
44   15   to the left of    7