Problem: What are the most important words?
politician making a speech to conference .
Answer: conference, politician, speech

Problem: What are the most important words?
A hotdog with mustard and ketchup is lying on a piece of bread.
Answer: bread, ketchup, mustard

Problem: What are the most important words?
A plate topped with meat, broccoli and sauce.
Answer:
broccoli, meat, plate, sauce, top