Problem: What are the most important words?
men holding placards shout angry slogans at a protest against the government of politician .
Answer: hold, protest, shout, slogan

Problem: What are the most important words?
The plate is full with meat, potatoes, broccoli, and carrots.
Answer: broccoli, carrot, meat, plate

Problem: What are the most important words?
soldiers check an unmanned aerial vehicle .
Answer:
check, soldier, vehicle