Who is throwing the tennis racket on the left?
The man is throwing the tennis racket.
    src        edge_attr  dst
0     0   to the left of    9
1     1   to the left of    7
2     2   to the left of    4
3     4               of    8
4     4  to the right of    2
5     4  to the right of    5
6     4  to the right of   10
7     5  to the right of   10
8     5   to the left of    4
9     6               of    8
10    6   to the left of    9
11    7  to the right of    1
12    7   to the left of   11
13    8  to the right of   10
14    8         throwing    0
15    9  to the right of    0
16    9  to the right of    6
17   10   to the left of    5
18   10   to the left of    4
19   10   to the left of    8
20   11               on    3
21   11  to the right of    7