What is the man on?
The man is on the motorbike.
    src        edge_attr  dst
0     0  to the right of    3
1     0   to the left of   11
2     0  to the right of   17
3     1   to the left of    2
4     1   to the left of   11
5     1      in front of    9
6     1  to the right of   17
7     1   to the left of    4
8     2  to the right of   17
9     2               in    0
10    2   to the left of   11
11    2  to the right of    1
12    2  to the right of    4
13    2  to the right of    3
14    3       walking on    5
15    3   to the left of   11
16    3  to the right of   17
17    3     walking down    5
18    3   to the left of    2
19    3   to the left of    0
20    3   to the left of    4
21    4  to the right of    1
22    4               in    0
23    4   to the left of    2
24    4  to the right of    3
25    4  to the right of   17
26    4   to the left of   11
27    5             near   11
28    6               of   18
29    6   to the left of   15
30    9           behind    1
31   11             near    5
32   11  to the right of    1
33   11  to the right of   17
34   11  to the right of    3
35   11  to the right of    0
36   11  to the right of    4
37   11  to the right of    2
38   12       sitting on   13
39   12               on   13
40   14               of   18
41   14  to the right of   16
42   14  to the right of   15
43   15   to the left of   14
44   15  to the right of   16
45   15  to the right of    6
46   16               of   18
47   16   to the left of   14
48   16   to the left of   15
49   17   to the left of    4
50   17   to the left of    2
51   17   to the left of    1
52   17   to the left of   11
53   17   to the left of    3
54   17   to the left of    0
55   18       leaning on   15
56   18       chained to   15