Measure is related to Cooking. Cake can be used for Cooking. Cake is related to Essential. Essential is related to Necessary. 
Core is etymologically related to Heart. Heart is a synonym of Breast. 
Measure <--RelatedTo--> Cooking <--UsedFor-- Cake <--RelatedTo--> Essential <--RelatedTo--> Necessary 
Core --EtymologicallyRelatedTo--> Heart <--Synonym--> Breast 