Is there any elephant or cow that is brown?
Yes, the cows are brown.
    src        edge_attr  dst
0     0  to the right of   11
1     0   to the left of    2
2     1   to the left of   13
3     1   to the left of    3
4     1   to the left of    2
5     2  to the right of    9
6     2  to the right of    1
7     2  to the right of    0
8     2  to the right of    7
9     2  to the right of    6
10    3  to the right of    1
11    3  to the right of   13
12    5               of    6
13    6   to the left of    2
14    7   to the left of    2
15    9   to the left of    2
16   10               on   11
17   10               in   11
18   11   to the left of    0
19   13  to the right of    1
20   13               of    6
21   13   to the left of    3
22   13  to the right of   14
23   14   to the left of   13
24   14               of    6