Problem: What are the most important words?
A herd of African elephants gather at a water hole
Answer: elephant, gather, hole

Problem: What are the most important words?
vertical panning in slow motion of a waterfall in rocky mountains
Answer: motion, pan, waterfall

Problem: What are the most important words?
This square pizza has cheese, bell peppers, mushrooms, olives and sauce on top.
Answer:
cheese, olive, pepper, pizza