Palace is related to Grand. Grand is similar to Important. Important is related to Priority. 
Enroll is a synonym of List. Index is a type of List. Index is related to Finger. 
Palace <--RelatedTo--> Grand <--SimilarTo--> Important <--RelatedTo--> Priority 
Enroll <--Synonym--> List <--IsA-- Index <--RelatedTo--> Finger 