Membership is a type of Relationship. Romance is a type of Relationship. Candle can be used for Romance. 
Web is a synonym of Net. Net is a synonym of Final. Final is related to Space. 
Membership --IsA--> Relationship <--IsA-- Romance <--UsedFor-- Candle 
Web <--Synonym--> Net <--Synonym--> Final <--RelatedTo--> Space 