Who wears a vest?
The workers wear a vest.
     src        edge_attr  dst
0      0  to the right of   22
1      0  to the right of   21
2      2          wearing   10
3      2   to the left of    3
4      2   to the left of    7
..   ...              ...  ...
98    23   to the left of    7
99    24  to the right of   23
100   24   to the left of    3
101   25   to the left of    3
102   26  to the right of    3

[103 rows x 3 columns]