Is he on a bicycle?
No, the man is on the surfboard.
   src        edge_attr  dst
0    0  to the right of    5
1    2   to the left of    6
2    3  to the right of    5
3    4        riding on    1
4    4               on    1
5    5   to the left of    3
6    5   to the left of    0
7    6  to the right of    2