What are the keywords in the following sentence? cash hidden under the mattress
cash, hide, mattress

What are the keywords in the following sentence? light streams through windows at the railroad and ferry terminal creating a beautiful silhouette
create, railroad, silhouette, stream, window

What are the keywords in the following sentence? Jets fly in formation with long cloud of smoke behind them
cloud, fly, formation

What are the keywords in the following sentence? an attractive elderly couple on a tropical vacation laughing together isolated
couple, laugh, vacation