Problem: What are the most important words?
camera slides across beautiful crisp dried leaves on the grassy floor of wilderness in autumn
Answer: autumn, floor, wilderness

Problem: What are the most important words?
types of minerals how can you tell how many minerals are in a rock .
Answer: rock, tell, type

Problem: What are the most important words?
person goes down after a tackle by football player which gave person a penalty
Answer:
give, penalty, player, tackle