Decline is a synonym of Fail. Fail is a synonym of Collapse. Collapse is a synonym of Burst. Pop is a type of Burst. 
Consultant is a synonym of Adviser. Adviser is derived from Advise. Advise is related to Help. Conscience would make you want to Help. 
Decline <--Synonym--> Fail <--Synonym--> Collapse <--Synonym--> Burst <--IsA-- Pop 
Consultant <--Synonym--> Adviser --DerivedFrom--> Advise <--RelatedTo--> Help <--CausesDesire-- Conscience 