Who is standing on the surfboard on top of the beach?
The surfer is standing on the surfboard.
   src        edge_attr  dst
0    5            above    7
1    5        riding on    7
2    5               in    2
3    5      standing on    7
4    5          wearing    0
5    7        on top of    4
6    9   to the left of   10
7    9  on the front of    0
8   10  to the right of    9