Who is wearing the cap?
The father is wearing a cap.
    src         edge_attr  dst
0     0   to the right of    6
1     1           wearing   21
2     1  standing next to    2
3     1   to the right of   10
4     1   to the right of    4
..  ...               ...  ...
63   19    to the left of    2
64   19    to the left of    4
65   19           wearing   16
66   19           wearing   15
67   21                on   20

[68 rows x 3 columns]