Wood is related to Heart. Heart is a synonym of Breast. 
Driveway is related to Rock. Rock is related to Crystal. Crystal is related to Substance. Fluid is a type of Substance. 
Wood <--RelatedTo--> Heart <--Synonym--> Breast 
Driveway <--RelatedTo--> Rock <--RelatedTo--> Crystal <--RelatedTo--> Substance <--IsA-- Fluid 