What are the animals that the bushes are behind?
The animals are cows.
    src    edge_attr  dst
0     2        above    5
1     2  in front of    3
2     2           on    5
3     2        above    6
4     3       behind    2
5     3  in front of    4
6     3       behind    6
7     5        under    2
8     5        below    6
9     5        under    6
10    6        under    2
11    6  in front of    3
12    6           on    5
13    6        above    5
14    6       eating    5
15    6   underneath    2