What is on the fire hydrant?
The shoe is on the fire hydrant.
    src        edge_attr  dst
0     0               on    7
1     1           behind    3
2     2               on    7
3     2  to the right of    5
4     3      standing on    7
5     3          wearing    2
6     3      in front of    1
7     3     balancing on    7
8     5   to the left of    2
9     7    surrounded by    9
10    9      surrounding    7