What are the keywords in the following sentence? plume of smoke darkens the skies east
darken, plume, sky, smoke

What are the keywords in the following sentence? A couch and suitcase in a small room.
couch, room, suitcase

What are the keywords in the following sentence? image titled deal with a lazy child step
deal, image, step, title

What are the keywords in the following sentence? Few chips on the plate next to the hotdog with peppers, onions and mustard.
hotdog, mustard, onion