Call is a type of Ask. Ask is the opposite of Reply. Reply is related to Sentence. Story have Sentence. 
Congress is related to American. American is related to Gas. Gas is derived from Gasoline. 
Call --IsA--> Ask <--Antonym--> Reply <--RelatedTo--> Sentence <--HasA-- Story 
Congress <--RelatedTo--> American <--RelatedTo--> Gas --DerivedFrom--> Gasoline 