What are the keywords in the following sentence? shattered glass caused by attacks covers a room .
cover, glass, shatter

What are the keywords in the following sentence? man resting on a hammock while boy and girl row in canoe on pristine rural lake
hammock, lake, rest

What are the keywords in the following sentence? A white plate of donuts in assorted flavors is next to another plate.
donut, flavor, plate

What are the keywords in the following sentence? two trains are parked in a train depot
depot, park, train