Problem: What are the most important words?
these are three giraffes standing in a pen
Answer: giraffe, pen, stand

Problem: What are the most important words?
young woman doctor listening its own heart with a stethoscope
Answer: doctor, heart, stethoscope

Problem: What are the most important words?
The weatherman is giving the weather for San Francisco as a man comes out.
Answer:
come, give, weather