Who is surfing?
The boy is surfing.
   src        edge_attr  dst
0    2             near    8
1    4           behind    5
2    5             near    8
3    5  to the right of    6
4    6   to the left of    5
5    7               on    8
6    7       walking on    8
7    8             near    2
8    8             near    5