Agree is a synonym of Accept. Accept is the opposite of Protest. Protest is related to Being. 
Strength is related to Current. Current is a different concept from Past. Past is related to Remember. Remind can cause/lead to Remember. 
Agree <--Synonym--> Accept <--Antonym--> Protest <--RelatedTo--> Being 
Strength <--RelatedTo--> Current <--DistinctFrom--> Past <--RelatedTo--> Remember <--Causes-- Remind 