What is the dog on?
The dog is on the bench.
    src        edge_attr  dst
0     0            under    5
1     0            above    8
2     0            below    5
3     1               on    5
4     1  to the right of    6
5     2               of    5
6     3  to the right of    6
7     5             with    1
8     5               on    0
9     6   to the left of    3
10    6   to the left of    1
11    8            under    0
12   10               on    7
13   11               of    0