What are the keywords in the following sentence? time lapse with slow zoom into steam rising from cooling towers at a coal fired power station
cool, fire, station, steam, tower

What are the keywords in the following sentence? nothing completes a room like wall art
art, complete, room

What are the keywords in the following sentence? Three zebras munching on grass in their natural habitat.
grass, munch, zebra

What are the keywords in the following sentence? text with all words but the most often used words in the language excised .
language, text, word