Person does not want (to) Refugee. Person wants (to) Proof. Proof is a type of Strengthen. 
Entrance is a different concept from Exit. Exit is a synonym of Passing. Passing is related to Graduation. Graduation is related to Undergraduate. 
Refugee <--NotDesires-- Person --Desires--> Proof --IsA--> Strengthen 
Entrance <--DistinctFrom--> Exit <--Synonym--> Passing <--RelatedTo--> Graduation <--RelatedTo--> Undergraduate 