Problem: What are the most important words?
a beautiful couple standing near blue the sea
Answer: couple, sea, stand

Problem: What are the most important words?
golden olympic rings against a sky filled with spectacular bursts of fireworks
Answer: burst, fill, firework, ring, sky

Problem: What are the most important words?
A blue miniature train has smoke coming out of its chimney.
Answer:
chimney, come, train