What are the keywords in the following sentence? wind causes intricate patterns to form in the white sand
cause, pattern, sand, wind

What are the keywords in the following sentence? a train in station moving besides the buildings
building, move, train

What are the keywords in the following sentence? fights broke out between fans after the match
break, fight, match

What are the keywords in the following sentence? woman with blue apron standing by flowers at a flower shop
flower, shop, stand