Are there either white cows or dogs?
Yes, there is a white cow.
    src        edge_attr  dst
0     0               in    1
1     0  to the right of   10
2     0  to the right of    4
3     0   to the left of    2
4     0  to the right of    8
5     0   to the left of    6
6     2  to the right of    0
7     2  to the right of    6
8     2           eating    3
9     2  to the right of    5
10    2               in    1
11    3               in    1
12    4  to the right of   10
13    4   to the left of    7
14    4   to the left of    0
15    4               in    1
16    5   to the left of    2
17    5  to the right of    7
18    6         watching    2
19    6  to the right of    0
20    6  to the right of    7
21    6   to the left of    2
22    7   to the left of    6
23    7   to the left of    5
24    7  to the right of    4
25    8   to the left of    0
26    8   to the left of   12
27   10   to the left of    0
28   10   to the left of    4
29   12  to the right of    8
30   12   to the left of   13
31   13               of    0
32   13  to the right of   12