Unique is related to Question. Question is related to May. May is related to Shall. 
Wash is related to Do. Do is related to Scale. Scale is a type of Model. Globe is a type of Model. 
Unique <--RelatedTo--> Question <--RelatedTo--> May <--RelatedTo--> Shall 
Wash <--RelatedTo--> Do <--RelatedTo--> Scale --IsA--> Model <--IsA-- Globe 