Problem: What are the most important words?
apples grow on a branch against the blue sky
Answer: apple, branch, sky

Problem: What are the most important words?
Large black bear with long claws perched in a hollowed out tree.
Answer: bear, perch, tree

Problem: What are the most important words?
A pizza that has pepperoni, olives, onion, bell pepper, and mushroom.
Answer:
mushroom, olive, onion, pepperoni