Cope is related to Action. Action is related to Strength. Strength is a synonym of Expertise. 
Past is a different concept from Fill. Fill is the opposite of Empty. Empty is a synonym of Clean. 
Cope <--RelatedTo--> Action <--RelatedTo--> Strength <--Synonym--> Expertise 
Past <--DistinctFrom--> Fill <--Antonym--> Empty <--Synonym--> Clean 