Which kind of animal is above the bush?
The animals are birds.
    src    edge_attr  dst
0     1        above    3
1     1        below    2
2     1        above    4
3     1  flying over    5
4     1           in    2
5     1         near    5
6     1        above    5
7     3         near    4
8     3        below    1
9     4        below    1
10    4         near    3
11    4         near    5
12    5         near    4
13    5         near    1