Does the person ride on a skateboard?
Yes, the person rides on a skateboard.
    src        edge_attr  dst
0     1               on    7
1     1          wearing    2
2     1  to the right of    8
3     1          wearing    3
4     1        riding on    7
5     2   to the left of   10
6     3  to the right of    8
7     4  to the right of    8
8     5   to the left of    9
9     7   to the left of    9
10    8   to the left of    1
11    8   to the left of    4
12    8   to the left of    3
13    8               on    0
14    9  to the right of    5
15    9               on    0
16    9  to the right of    7
17   10  to the right of    2
18   10               on    0