Access is a type of Recover. Recover is a different concept from Decline. Decline is the opposite of Rally. 
Impulse is related to Shock. Shock is related to Reaction. Reaction is related to Disease. 
Access --IsA--> Recover <--DistinctFrom--> Decline <--Antonym--> Rally 
Impulse <--RelatedTo--> Shock <--RelatedTo--> Reaction <--RelatedTo--> Disease 