Warmth is related to Sock. Sock is related to Inner. Inner is a synonym of Interior. Interior is a synonym of Home. 
Rich is the opposite of Servant. Servant is related to Personal. 
Warmth <--RelatedTo--> Sock <--RelatedTo--> Inner <--Synonym--> Interior <--Synonym--> Home 
Rich <--Antonym--> Servant <--RelatedTo--> Personal 