Who is wearing a cap?
The batter is wearing a cap.
    src        edge_attr  dst
0     1   to the left of    4
1     2         swinging   10
2     2          holding   10
3     2          wearing    1
4     2        on top of    9
5     2          wearing   14
6     4  to the right of    1
7     5        on top of    9
8     5          wearing    8
9    15        on top of    6
10   15        on top of    9
11   17   to the left of   19
12   18         carrying   13
13   19  to the right of   17