Expense is a different concept from Cheap. Cheap is related to Rice. Rice is a type of Pasta. 
Relate is a synonym of Affect. Affect is a synonym of Move. Jump is a type of Move. you would Jump because Scared. 
Expense <--DistinctFrom--> Cheap <--RelatedTo--> Rice --IsA--> Pasta 
Relate <--Synonym--> Affect <--Synonym--> Move <--IsA-- Jump --MotivatedByGoal--> Scared 