Problem: What are the most important words?
A man is skiing downhill on a course and weaving in and out of flags.
Answer: course, flag, ski, weave

Problem: What are the most important words?
a close up of a statue of a zebra in a field
Answer: field, statue, zebra

Problem: What are the most important words?
student helping each other in a library
Answer:
help, library, student