Problem: What are the most important words?
texture of the old buttons of different forms and colors
Answer: color, form, texture

Problem: What are the most important words?
action on the pitch in the clash on sunday was overshadowed by events all around the stadium
Answer: clash, pitch, stadium

Problem: What are the most important words?
A boy is pushing a wagon with pumpkins to the market.
Answer:
market, pumpkin, wagon