What are the keywords in the following sentence? a mallard duck in flight across a pond whilst quacking
duck, flight, pond

What are the keywords in the following sentence? roses in a bouquet of flowers
bouquet, flower, rose

What are the keywords in the following sentence? life has dealt you a good hand ... make the most of it .
deal, hand, life

What are the keywords in the following sentence? automobile model was introduced and was first mass produced car for the market .
car, introduce, model