Problem: What are the most important words?
silhouette of kid smelling a flower and butterflies flying around him .
Answer: flower, kid, smell

Problem: What are the most important words?
a city also features in the list of posters being sold
Answer: city, feature, list

Problem: What are the most important words?
concrete gravity dams are constructed such that their own weight resist the forces exerted upon it
Answer:
construct, dam, exert, force, weight