Crime is related to Detective. Detective is related to Spy. 
Stroke is a type of Motion. Motion is related to Rapid. Rapid is a synonym of Fast. Fast is related to Sudden. 
Crime <--RelatedTo--> Detective <--RelatedTo--> Spy 
Stroke --IsA--> Motion <--RelatedTo--> Rapid <--Synonym--> Fast <--RelatedTo--> Sudden 