Is the sheep brown?
No, the sheep is white.
    src        edge_attr  dst
0     0   to the left of   12
1     1   to the left of    7
2     1   to the left of   10
3     4   to the left of    6
4     6  to the right of   13
5     6  to the right of    4
6     6   to the left of    9
7     7   to the left of    9
8     7  to the right of    1
9     7  to the right of   10
10    9  to the right of   13
11    9  to the right of    7
12    9  to the right of    6
13   10   to the left of    7
14   10  to the right of    1
15   12  to the right of    0
16   13   to the left of    9
17   13   to the left of    6