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?
a wide shot of the mountain with grassy field panning shot to the right
Answer: field, mountain, shoot

Problem: What are the most important words?
footballer drives the ball during a match as part .
Answer:
ball, drive, footballer