Call is a type of Instruction. Instruction is a synonym of Education. 
Army is related to Military. Military is a different concept from Civilian. Refugee is a type of Civilian. Refugee is derived from Refuge. 
Call --IsA--> Instruction <--Synonym--> Education 
Army <--RelatedTo--> Military <--DistinctFrom--> Civilian <--IsA-- Refugee --DerivedFrom--> Refuge 