Problem: What are the most important words?
players sign autographs during the official fifa world cup portrait session
Answer: autograph, player, session, sign

Problem: What are the most important words?
meadow and distant mountains under a big sky in the region .
Answer: mountain, region, sky

Problem: What are the most important words?
Two men in the competition are demonstrating their skills in front of judges.
Answer:
competition, demonstrate, skill