Rice is related to Content. Tradition is a type of Content. Tradition is a synonym of Custom. 
Declare is a type of Authorize. Testify is a type of Declare. Testify is a type of Inform. 
Rice <--RelatedTo--> Content <--IsA-- Tradition <--Synonym--> Custom 
Authorize <--IsA-- Declare <--IsA-- Testify --IsA--> Inform 