Problem: What are the most important words?
empty wooden pier with dark stormy clouds over sea and yellow fishing boat in the distance
Answer: boat, cloud, sea

Problem: What are the most important words?
A bathroom with urinals hanging on the wall.
Answer: bathroom, hang, urinal, wall

Problem: What are the most important words?
A woman decorating a cake with white frosting.
Answer:
cake, decorate, frosting