Problem: What are the most important words?
A young man checking food inside of an oven.
Answer: check, food, oven

Problem: What are the most important words?
travel and tourism around the world by plane .
Answer: plane, travel, world

Problem: What are the most important words?
A giraffe lowers its head past a fence into a clump of tall grasses to eat.
Answer:
clump, eat, giraffe, grass