Problem: What are the most important words?
little engineers working in team while repairing a robot
Answer: engineer, robot, work

Problem: What are the most important words?
religious leader arrived to a monumental roar from the people gathered to see him lead a huge mass
Answer: gather, leader, mass

Problem: What are the most important words?
an abstract pattern of remnants of posters on a wall
Answer:
pattern, poster, wall