Popular is similar to Hot. Hot is related to Air. Air is related to Material. Material is related to Cotton. 
Pleasant is related to Aesthetic. Aesthetic is similar to Artistic. 
Popular <--SimilarTo--> Hot <--RelatedTo--> Air <--RelatedTo--> Material <--RelatedTo--> Cotton 
Pleasant <--RelatedTo--> Aesthetic <--SimilarTo--> Artistic 