Strength is related to Physical. Physical is related to Weight. Weight is related to Pull. 
Gasoline is a type of Liquid. Liquid is related to Pour. Pour is related to Serving. 
Strength <--RelatedTo--> Physical <--RelatedTo--> Weight <--RelatedTo--> Pull 
Gasoline --IsA--> Liquid <--RelatedTo--> Pour <--RelatedTo--> Serving 