Who is in front of the person that is wearing a helmet?
The batter is in front of the catcher.
    src        edge_attr  dst
0     0               on   10
1     1  to the right of    9
2     1  to the right of    4
3     2   to the left of    9
4     2   to the left of    4
5     2      in front of    9
6     3   to the left of    9
7     3   to the left of    4
8     4  to the right of    3
9     4  to the right of    2
10    4   to the left of    1
11    5             near    6
12    6          next to    5
13    8         carrying    7
14    9           behind    2
15    9  to the right of    3
16    9  to the right of    2
17    9  to the right of   11
18    9          wearing    4
19    9   to the left of    1
20   11   to the left of    9