Buck is a synonym of Single. Summer is a type of Single. Summer is related to Cotton. 
Creature is related to Strange. Strange is similar to Exotic. Exotic is similar to Foreign. 
Buck <--Synonym--> Single <--IsA-- Summer <--RelatedTo--> Cotton 
Creature <--RelatedTo--> Strange <--SimilarTo--> Exotic <--SimilarTo--> Foreign 