What is the young person standing on?
The boy is standing on the skateboard.
    src        edge_attr  dst
0     0  to the right of   12
1     0   to the left of   15
2     0  to the right of    9
3     2          wearing    6
4     2               on    5
5     2     playing with    5
6     2  to the right of    3
7     2  to the right of    7
8     2      standing on    5
9     3  to the right of    9
10    3   to the left of   11
11    3  to the right of   12
12    3             near   13
13    3   to the left of    2
14    6  to the right of    7
15    7   to the left of    6
16    7   to the left of    2
17    7               of    5
18    7   to the left of   16
19    8   to the left of   15
20    9   to the left of    3
21    9             near   13
22    9   to the left of   15
23    9   to the left of    0
24   10               of    2
25   11  to the right of    3
26   12   to the left of    3
27   12   to the left of    0
28   12   to the left of   15
29   13   to the left of   15
30   13             near    9
31   13             near    3
32   15  to the right of    9
33   15  to the right of   12
34   15  to the right of    8
35   15  to the right of    0
36   15  to the right of   13
37   16  to the right of    7