Problem: What are the most important words?
A man shows an oil filter on an engine and where it might leak oil.
Answer: engine, leak, oil

Problem: What are the most important words?
Along the corridor, someone stops in front of a guilt - framed portrait.
Answer: front, portrait, stop

Problem: What are the most important words?
the village surrounded by mountains at sunrise time with foggy
Answer:
mountain, time, village