Who is wearing the shirt?
The policeman is wearing a shirt.
    src        edge_attr  dst
0     1  to the right of   16
1     1  to the right of    4
2     1  to the right of   12
3     2  to the right of   11
4     3  to the right of   15
..  ...              ...  ...
62   21   to the left of   12
63   21   to the left of    4
64   21  to the right of    6
65   22   to the left of   23
66   23  to the right of   22

[67 rows x 3 columns]