Problem: What are the most important words?
Few chips on the plate next to the hotdog with peppers, onions and mustard.
Answer: hotdog, mustard, pepper

Problem: What are the most important words?
train arriving in a station
Answer: arrive, station, train

Problem: What are the most important words?
we can eliminate the blues and purples but i really liked the red exotic flowers .
Answer:
blue, like, purple