Charge is related to Cover. Cover is the opposite of Reveal. Reveal is a different concept from Hide. Hide is related to Prevent. 
New is related to Status. Retirement is a type of Status. Retirement is a synonym of Departure. 
Charge <--RelatedTo--> Cover <--Antonym--> Reveal <--DistinctFrom--> Hide <--RelatedTo--> Prevent 
New <--RelatedTo--> Status <--IsA-- Retirement <--Synonym--> Departure 