Problem: What are the most important words?
a magnifying glass over a map shows federal republic including a city
Answer: city, glass, magnify, map

Problem: What are the most important words?
A bathroom with a couple of towels hanging on the rack and a mop in the corner.
Answer: bathroom, corner, hang, towel

Problem: What are the most important words?
private university attracts international students from all over the world
Answer:
student, university, world