Problem: What are the most important words?
a group of firefighters gather round their fire engine at a fire station after an incident
Answer: engine, firefighter, station

Problem: What are the most important words?
a housewife decorates a pretty star shaped cookie with colorful icing
Answer: cookie, decorate, icing, shape

Problem: What are the most important words?
motor boat enter to the port
Answer:
boat, enter, port