Who is on the skateboard that the boy is to the left of?
The guy is on the skateboard.
    src        edge_attr  dst
0     0   to the left of    3
1     0  to the right of   15
2     0   to the left of    6
3     0  to the right of    9
4     3  to the right of    7
5     3  to the right of    0
6     3   to the left of   11
7     3  to the right of    8
8     4   to the left of   15
9     4  to the right of    5
10    5   to the left of    4
11    5   to the left of   13
12    5   to the left of    9
13    5  to the right of   14
14    6   to the left of   11
15    6  to the right of   15
16    6  to the right of    8
17    6  to the right of    0
18    7  to the right of    9
19    7   to the left of    8
20    7   to the left of    3
21    8  to the right of    9
22    8   to the left of    6
23    8   to the left of    3
24    8  to the right of   15
25    8  to the right of    7
26    9   to the left of    7
27    9  to the right of   16
28    9  to the right of   13
29    9   to the left of    8
30    9  to the right of    5
31    9  to the right of   12
32    9   to the left of    0
33    9  to the right of   14
34   11  to the right of    6
35   11  to the right of    3
36   12               on    5
37   12   to the left of    9
38   12   to the left of   15
39   13   to the left of    9
40   13   to the left of   15
41   13  to the right of    5
42   14   to the left of    9
43   14   to the left of    5
44   15  to the right of   12
45   15  to the right of   13
46   15   to the left of    6
47   15   to the left of    0
48   15  to the right of    4
49   15   to the left of    8
50   16   to the left of    9