Is there either any white goat or lamb?
No, there is a goat but it is brown.
    src        edge_attr  dst
0     0  to the right of    6
1     0  to the right of    1
2     1   to the left of    0
3     3   to the left of    7
4     3   to the left of   11
5     4  to the right of   11
6     4  to the right of    5
7     5   to the left of    8
8     5   to the left of    4
9     6  to the right of   10
10    6   to the left of    0
11    7  to the right of    3
12    8  to the right of    5
13    8  to the right of    9
14    9   to the left of    8
15    9  to the right of   10
16   10   to the left of    6
17   10   to the left of    9
18   11   to the left of    4
19   11  to the right of    3