What are the keywords in the following sentence? brothers returned to their elementary school to celebrate their graduation .
brother, return, school

What are the keywords in the following sentence? A farmers marked filled with lots of fresh produce.
farmer, fill, lot, mark, produce

What are the keywords in the following sentence? members treat a man who fell from mountain on suffering
fall, member, mountain, treat

What are the keywords in the following sentence? flight over a railway track in the middle of meadows and forests
forest, meadow, middle