Separate is a synonym of Distinguish. Characterize is a type of Distinguish. Characterize is a synonym of Qualify. Qualify is a synonym of Entitle. 
Background is a synonym of Setting. Setting is a synonym of Mount. Mount is a type of Fix. 
Separate <--Synonym--> Distinguish <--IsA-- Characterize <--Synonym--> Qualify <--Synonym--> Entitle 
Background <--Synonym--> Setting <--Synonym--> Mount --IsA--> Fix 