What are the keywords in the following sentence? cup of coffee and a magazine
coffee, cup, magazine

What are the keywords in the following sentence? A lone passenger watches as the train pulls away from the station
pull, station, train, watch

What are the keywords in the following sentence? beauty of the sea and sky
beauty, sea, sky

What are the keywords in the following sentence? A jet airplane being towed by a vehicle on the tarmac of an airport.
airplane, airport, tarmac, vehicle