What is the person on?
The person is on the motorbike.
    src        edge_attr  dst
0     2   to the left of   15
1     2   to the left of   13
2     2   to the left of    3
3     2   to the left of    4
4     2   to the left of    9
5     2   to the left of    6
6     3  to the right of   14
7     3   to the left of    9
8     3   to the left of    6
9     3  to the right of    2
10    4          wearing   13
11    4               on   16
12    4          wearing   12
13    4          wearing    1
14    4          wearing    7
15    4           riding   16
16    4  to the right of   14
17    4  to the right of    2
18    6  to the right of    3
19    6  to the right of    2
20    6  to the right of   14
21    8               in    0
22    9               on   16
23    9  to the right of    2
24    9  to the right of    3
25   13  to the right of    2
26   14   to the left of    3
27   14   to the left of    4
28   14   to the left of    6
29   14   to the left of   15
30   15  to the right of    2
31   15  to the right of   14
32   16          wearing   13
33   17               on   16