Problem: What are the most important words?
portrait of male doctor holding a medical report in hospital
Answer: doctor, hold, hospital

Problem: What are the most important words?
surrounded by snow is illuminated by the last rays of sun on a cold winter day
Answer: day, ray, snow

Problem: What are the most important words?
We are being shown how to change our oil in our cars for some type of reward.
Answer:
change, oil, type