Cake is a different concept from Healthy. Healthy is related to Bean. Bean is related to Food. Food is related to Sugar. 
Aid is a synonym of Contribute. Contribute is a synonym of Help. Help is related to Explain. Explain is related to Justify. 
Cake <--DistinctFrom--> Healthy <--RelatedTo--> Bean <--RelatedTo--> Food <--RelatedTo--> Sugar 
Aid <--Synonym--> Contribute <--Synonym--> Help <--RelatedTo--> Explain <--RelatedTo--> Justify 