What are the officers wearing?
The officers are wearing vests.
     src        edge_attr  dst
0      0   to the left of   16
1      0   to the left of   27
2      0   to the left of   17
3      0   to the left of   11
4      1  to the right of    2
..   ...              ...  ...
138   27  to the right of   12
139   27  to the right of   17
140   27   to the left of   24
141   27   to the left of   26
142   27   to the left of   25

[143 rows x 3 columns]