What do both the field and the ostrich have in common?
The color, both the field and the ostrich are white.
    src        edge_attr  dst
0     0           behind    3
1     1   to the left of    6
2     1  to the right of    5
3     2             near    4
4     2           inside    3
5     2               in    9
6     2          next to    4
7     2  to the right of   14
8     2   to the left of    8
9     2   to the left of    6
10    3      in front of    8
11    3               of    6
12    3      in front of    0
13    4             near    5
14    4          next to    5
15    4             near    2
16    4           inside    3
17    4               in    9
18    4          next to    2
19    5           inside    3
20    5             near    4
21    5               in    9
22    5               by    2
23    5   to the left of    6
24    5   to the left of    1
25    6  to the right of    5
26    6  to the right of    2
27    6  to the right of    1
28    7   to the left of   14
29    8  to the right of    2
30    8           behind    3
31   10  to the right of   12
32   10               of   11
33   12               of   11
34   12   to the left of   10
35   14   to the left of    2
36   14  to the right of    7
37   15           inside    3