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