Instruct: Retrieve semantically similar text.
Query: A policeman wearing a green vest blows his whistle and moves his arms.
A policeman is gesturing with his arms.
A person is blowing a whistle
The person is a police officer.
Talking is going on.
The officer does not have a uniform on.
Someone is wearing a number.
The person gestures.
A person is blowing a whistle.
A police office has a note of what to do today.
a person in a uniform does something
A policeman review photos.
There is a policeman.
Person  does something
A policeman patrolling.
There is an event going on.
An officer working
The police officer is outside.
A man wearing a vest marked "Police".
Someone is using a device.
The official is a policeman.
A uniformed person puts of a temporary warning border.
A policeman monitors the actions of a peaceful protest movement.
Someone is using something.
A policeman is sitting in his car reading a book.
A policeman is directing traffic around the accident scene.