What are the keywords in the following sentence? little boy as chemist doing experiment with chemical fluid in the laboratory
chemist, experiment, laboratory

What are the keywords in the following sentence? A box of donuts with a bite missing out of one of them .
bite, donut, miss

What are the keywords in the following sentence? a large plane sits on a runway not flying
fly, plane, runway, sit

What are the keywords in the following sentence? meadow and distant mountains under a big sky in the region .
mountain, region, sky