Problem: What are the most important words?
The buffet has a lot of different pizzas on it.
Answer: buffet, lot, pizza

Problem: What are the most important words?
An orange and white cat and beaver looking at an ear of corn.
Answer: cat, corn, look

Problem: What are the most important words?
Along the corridor, someone stops in front of a guilt - framed portrait.
Answer:
front, portrait, stop