What is the surfer doing?
The surfer is waiting.
   src        edge_attr  dst
0    0  to the right of    3
1    0  to the right of    2
2    1               in    4
3    1         watching    3
4    1           inside    4
5    2   to the left of    0
6    3        riding on    0
7    3          wearing    2
8    3   to the left of    0