Pop is related to Drink. Drink is related to Substance. Substance is related to Material. Material is related to Metal. 
Adventure is related to Go. Go is a synonym of Change. Soften is a type of Change. 
Pop <--RelatedTo--> Drink <--RelatedTo--> Substance <--RelatedTo--> Material <--RelatedTo--> Metal 
Adventure <--RelatedTo--> Go <--Synonym--> Change <--IsA-- Soften 