Problem: What are the most important words?
A smiling man waves his eyebrows three times after another man asked him to show him the wave.
Answer: ask, smile, wave

Problem: What are the most important words?
layers of paint on these paintings so far .
Answer: layer, paint, painting

Problem: What are the most important words?
descending view of an illuminated city with skyscrapers at night
Answer:
city, illuminate, skyscraper, view