What is the man standing on?
The man is standing on the skis.
    src        edge_attr  dst
0     1  to the right of   13
1     1  to the right of    3
2     1  to the right of    9
3     1  to the right of    7
4     2         covering   12
5     2            above   12
6     2         covering    5
7     3   to the left of    1
8     3   to the left of    9
9     3            above   13
10    4               on    5
11    4      standing on   13
12    4      standing in    2
13    5       covered by    2
14    6  to the right of    8
15    7   to the left of    1
16    8   to the left of    6
17    9  to the right of    3
18    9   to the left of    1
19   12       covered by    2
20   13   to the left of    1