Who is wearing a vest?
The boy is wearing a vest.
    src        edge_attr  dst
0     0  to the right of   21
1     0  to the right of    1
2     0  to the right of   14
3     0  to the right of    7
4     1   to the left of    0
..  ...              ...  ...
90   20  to the right of    6
91   20  to the right of   11
92   20  to the right of   14
93   21  to the right of    1
94   21   to the left of    0

[95 rows x 3 columns]