Problem: What are the most important words?
rays of morning light illuminate fields on a foggy morning .
Answer: illuminate, light, ray

Problem: What are the most important words?
asphalt road and city with illuminated buildings on the horizon
Answer: asphalt, building, horizon, illuminate, road

Problem: What are the most important words?
country and parliamentary republic play a qualifier before an empty stadium on friday .
Answer:
qualifier, republic, stadium