Are there balls or skateboards in the scene?
Yes, there is a skateboard.
    src        edge_attr  dst
0     0          wearing   10
1     0            above    1
2     0        riding on    1
3     0          wearing    8
4     2   to the left of    4
5     4               of    1
6     4  to the right of    2
7     5  to the right of    8
8     6   to the left of   11
9     7  to the right of   10
10    8   to the left of    5
11   10   to the left of    7
12   11  to the right of    6