Problem: What are the most important words?
soldiers provide security while other soldiers patrol through a village .
Answer: patrol, provide, security, soldier, village

Problem: What are the most important words?
reproduction is the life process by which organisms produce new organisms .
Answer: organism, produce, reproduction

Problem: What are the most important words?
actor spends some time with a young fan at the premiere of thriller film on thursday .
Answer:
fan, premiere, spend, time