Reduction is a type of Change. Accelerate is a type of Change. Accelerate is a synonym of Advance. Advance is a synonym of Boost. 
Assignment is related to Test. Test is related to Sheet. 
Reduction --IsA--> Change <--IsA-- Accelerate <--Synonym--> Advance <--Synonym--> Boost 
Assignment <--RelatedTo--> Test <--RelatedTo--> Sheet 