Butter is related to Product. Product is related to Snow. Snow is related to Pole. Pole is related to Stick. 
Fundamental is similar to Basic. Basic is related to Bitter. Bitter is a synonym of Sharp. 
Butter <--RelatedTo--> Product <--RelatedTo--> Snow <--RelatedTo--> Pole <--RelatedTo--> Stick 
Fundamental <--SimilarTo--> Basic <--RelatedTo--> Bitter <--Synonym--> Sharp 