Problem: What are the most important words?
a book describing color through texture and words for the blind .
Answer: book, color, word

Problem: What are the most important words?
award winning parks in borough ensure properties for sale are seldom on the market long
Answer: award, market, sale, win

Problem: What are the most important words?
an uprooted tree blocks a road following a storm .
Answer:
block, road, storm, tree