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