What animal is on the chair?
The cat is on the chair.
   src    edge_attr  dst
0    0        below    2
1    1       behind    4
2    1       behind    3
3    3         near    4
4    3           on    4
5    3  in front of    1
6    3           on    2
7    3    on top of    2
8    4         near    3
9    4  in front of    1