What are the keywords in the following sentence? lone windmill pumps water for cattle on the prairie
pump, water, windmill

What are the keywords in the following sentence? view from the tower looking towards river flowing through a city
city, flow, river, view

What are the keywords in the following sentence? tourist attraction is an urban park in the city .
attraction, city, park

What are the keywords in the following sentence? pink sunlight and sun rays reflected on the tranquil water at sunset united states
ray, reflect, sunlight, water