What are the keywords in the following sentence? flowers of grass moved by the wind with kind of tones
grass, move, tone, wind

What are the keywords in the following sentence? A black and white curtain hanging in a room that is decorated in black, white and red.
curtain, decorate, room

What are the keywords in the following sentence? the referee pushes boxer away from boxer after boxer knocked boxer to the canvas during an event .
boxer, event, knock

What are the keywords in the following sentence? The football player hurt his leg.
hurt, leg, player