Who is riding on the skateboard?
The man is riding on a skateboard.
    src        edge_attr  dst
0     2   to the left of    7
1     3  to the right of   12
2     3  to the right of   11
3     3  to the right of   18
4     3  to the right of    6
5     5   to the left of   11
6     5   to the left of   10
7     5   to the left of   12
8     5   to the left of    8
9     5   to the left of    7
10    6   to the left of   13
11    6   to the left of    3
12    6   to the left of   18
13    6   to the left of   15
14    7  to the right of   10
15    7  to the right of    5
16    7  to the right of    2
17    8  to the right of    5
18    8  to the right of   10
19   10  to the right of    5
20   10   to the left of    7
21   10   to the left of    8
22   11  to the right of    5
23   11   to the left of   13
24   11               on   16
25   11        riding on   16
26   11   to the left of   15
27   11   to the left of    3
28   11         carrying   12
29   11          wearing    6
30   11          wearing    9
31   12   to the left of   13
32   12  to the right of    5
33   12   to the left of    3
34   12   to the left of   18
35   13  to the right of   18
36   13  to the right of   12
37   13  to the right of   11
38   13  to the right of    6
39   15  to the right of   11
40   15  to the right of   18
41   15  to the right of    6
42   18  to the right of   12
43   18   to the left of   13
44   18   to the left of    3
45   18  to the right of    6
46   18   to the left of   15