Problem: What are the most important words?
the scenery of the region in large part reflects the relationship between the ethnic minority people and nature .
Answer: reflect, region, scenery

Problem: What are the most important words?
public and school students come out for a week at a time for building function .
Answer: building, student, time

Problem: What are the most important words?
a female getting her ears checked by a physician
Answer:
check, ear, physician