Acceptance is a type of Acquisition. Acceptance is derived from Accept. Accept is a synonym of Consent. 
Rain is related to Coal. Coal is related to Old. Old is a different concept from Recent. 
Acquisition <--IsA-- Acceptance --DerivedFrom--> Accept <--Synonym--> Consent 
Rain <--RelatedTo--> Coal <--RelatedTo--> Old <--DistinctFrom--> Recent 