What is the person in front of the fence sitting on?
The man is sitting on the ground.
    src        edge_attr  dst
0     0           behind    2
1     2          wearing    3
2     2      in front of    0
3     2   to the left of    4
4     2   to the left of    9
5     2   to the left of    7
6     2       sitting on   10
7     2          wearing    8
8     2          playing    5
9     3   to the left of    9
10    3   to the left of    4
11    4          wearing    9
12    4  to the right of    2
13    4  to the right of    3
14    5   to the left of    9
15    6  to the right of    9
16    7  to the right of    2
17    7  to the right of    8
18    8   to the left of    7
19    9  to the right of    5
20    9  to the right of    3
21    9  to the right of    2
22    9   to the left of    6