What are the stickers on?
The stickers are on the skateboard.
    src        edge_attr  dst
0     0            under    7
1     0            below    7
2     0               on    7
3     1   to the left of    2
4     2  to the right of    1
5     2  to the right of    5
6     2           behind    5
7     3  to the right of    9
8     3  to the right of    8
9     5          holding    7
10    5     walking with    7
11    5      in front of    2
12    5             with    7
13    5          wearing   12
14    5          wearing    4
15    5  to the right of    8
16    5   to the left of    2
17    7               of    5
18    8   to the left of    3
19    8   to the left of    5
20    9   to the left of    3
21   11               of    7