Principle is related to Interest. Interest is a type of Fee. Fee is related to Expense. Expense is related to Sheet. 
Advance is a synonym of Gain. Gain is a different concept from Lose. 
Principle <--RelatedTo--> Interest --IsA--> Fee <--RelatedTo--> Expense <--RelatedTo--> Sheet 
Advance <--Synonym--> Gain <--DistinctFrom--> Lose 