Problem: What are the most important words?
hundreds of rhododendrons and azaleas make a riot of color in the spring .
Answer: azalea, rhododendron, spring

Problem: What are the most important words?
wide shot with castle overlooking the city
Answer: castle, city, overlook

Problem: What are the most important words?
A donkey grazes in the open field during the day
Answer:
donkey, field, graze