Problem: What are the most important words?
this goat has a place reserved for horns on his head
Answer: goat, head, horn

Problem: What are the most important words?
a lone firefighter works hard to extinguish the fire and stop it from spreading more
Answer: fire, firefighter, stop

Problem: What are the most important words?
small airplane is flying over the city during a cloudy evening .
Answer:
airplane, evening, fly