What is the boy playing?
The boy is playing tennis.
    src        edge_attr  dst
0     0          holding    7
1     0  to the right of    7
2     0   to the left of    2
3     2  to the right of    0
4     3   to the left of   10
5     3   to the left of    4
6     4  to the right of    3
7     5  to the right of    7
8     6   to the left of   10
9     7   to the left of    0
10    7   to the left of    9
11    7   to the left of    5
12    9  to the right of    7
13   10  to the right of    3
14   10  to the right of    6