What are the keywords in the following sentence? A couple are dealing merchandise.
couple, deal, merchandise

What are the keywords in the following sentence? ships in the harbour dry dock undergoing maintenance and repair
dock, maintenance, ship, undergo

What are the keywords in the following sentence? a room with a screen and a grey couch
couch, room, screen

What are the keywords in the following sentence? an airplane from below as the sun rises
airplane, rise, sun