Generous is the opposite of Small. Small is related to Doll. Doll is related to Room. Room is related to Furniture. 
Calculation is a synonym of Guess. Suspect is a type of Guess. 
Generous <--Antonym--> Small <--RelatedTo--> Doll <--RelatedTo--> Room <--RelatedTo--> Furniture 
Calculation <--Synonym--> Guess <--IsA-- Suspect 