What is the man throwing?
The man is throwing the tennis ball.
    src        edge_attr  dst
0     0  to the right of   10
1     0  to the right of    4
2     3          wearing   12
3     3          wearing    2
4     3          wearing    6
5     3         throwing    1
6     3          wearing    4
7     3          wearing   14
8     3   to the left of   11
9     4   to the left of    0
10    5   to the left of    8
11    6  to the right of   14
12    7  to the right of    9
13    8  to the right of   12
14    8   to the left of   11
15    8  to the right of    5
16    9   to the left of    7
17   10   to the left of    0
18   10               on    4
19   11         watching    3
20   11  to the right of    3
21   11  to the right of   12
22   11  to the right of    8
23   12   to the left of    8
24   12   to the left of   11
25   14   to the left of    6