Problem: What are the most important words?
portrait of happy team of scientists or researchers working together in a dark laboratory .
Answer: laboratory, researcher, scientist, team, work

Problem: What are the most important words?
the coach worked with football player
Answer: coach, player, work

Problem: What are the most important words?
He looks across the boat at richard parker who sleeps on the bench in a small shaft of sunlight.
Answer:
boat, look, shaft, sleep, sunlight