In front of what do you think is he?
The skier is in front of the sky.
    src        edge_attr  dst
0     1           behind    2
1     2          wearing    9
2     2          wearing    6
3     2      in front of    1
4     2          wearing   12
5     2          wearing    8
6     2          wearing   13
7     3  to the right of    4
8     4   to the left of    3
9     4   to the left of    6
10    6  to the right of    4
11   10  to the right of   11
12   11   to the left of   10
13   12               on    0