Problem: What are the most important words?
a city at night as seen from a yacht anchored in the bay
Answer: anchor, bay, city, yacht

Problem: What are the most important words?
free range chicken eating corn in a poultry farm
Answer: chicken, corn, farm

Problem: What are the most important words?
across the stream that runs in the middle of the town lies a serene lake .
Answer:
middle, run, stream