Problem: What are the most important words?
A mushroom, pepperoni, pepper pizza on a cooling rack.
Answer: pepperoni, pizza, rack

Problem: What are the most important words?
the butterfly flies among the white flowers and eats pollen
Answer: butterfly, eat, flower, pollen

Problem: What are the most important words?
firefighters were battling the inferno in cold and icy conditions .
Answer:
battle, firefighter, inferno