Problem: What are the most important words?
A small homemade pizza baking on a grill.
Answer: bake, grill, pizza

Problem: What are the most important words?
Red and white airplane in the air with cloudy skies.
Answer: air, airplane, sky

Problem: What are the most important words?
At the lounge, a bartender carries crates of glasses and the band rehearses.
Answer:
bartender, carry, lounge