Isolation is a type of Separation. Separation is related to Sad. Sad is related to Happy. Happy is a synonym of Suitable. 
Star is related to Famous. Famous is related to Distinguish. 
Isolation --IsA--> Separation <--RelatedTo--> Sad <--RelatedTo--> Happy <--Synonym--> Suitable 
Star <--RelatedTo--> Famous <--RelatedTo--> Distinguish 