What are the keywords in the following sentence? the heron with fish in the beak flying over lake
beak, fish, fly, heron

What are the keywords in the following sentence? bright green seaweed covers a pink granite edge at low tide in a city
cover, seaweed, tide

What are the keywords in the following sentence? minaret of building function at night
building, function, minaret, night

What are the keywords in the following sentence? an airplane is flying from east to west .
airplane, east, fly