Problem: What are the most important words?
Two women discussing a topic at the library to study for their college test.
Answer: library, study, test

Problem: What are the most important words?
A baby squirming on its front with drool coming out of its mouth.
Answer: come, drool, mouth

Problem: What are the most important words?
armed force provide security from concealed positions during a mission in province .
Answer:
force, mission, provide, security