What is the man on?
The man is on the ski.
    src        edge_attr  dst
0     0   to the left of   10
1     1               on    6
2     1  to the right of    9
3     1          holding    9
4     1               on   15
5     2   to the left of    7
6     2   to the left of    3
7     2   to the left of    5
8     2   to the left of   11
9     3  to the right of    2
10    3   to the left of    5
11    3  to the right of   11
12    3   to the left of    7
13    5  to the right of    3
14    5  to the right of    2
15    5  to the right of    7
16    5  to the right of   11
17    6   to the left of   15
18    6   to the left of   12
19    7  to the right of    2
20    7               in    0
21    7  to the right of   11
22    7   to the left of    5
23    7  to the right of    3
24    9   to the left of    1
25    9   to the left of   12
26    9   to the left of   14
27    9   to the left of   15
28   10  to the right of    0
29   11   to the left of    3
30   11  to the right of    2
31   11   to the left of    7
32   11   to the left of    5
33   12  to the right of    6
34   12  to the right of   13
35   12  to the right of    9
36   13   to the left of   15
37   13   to the left of   12
38   14  to the right of    9
39   15  to the right of   13
40   15  to the right of    9
41   15  to the right of    6