Healthy is a different concept from Cake. Cake is related to Wheat. Wheat is related to Rice. 
Area is related to Local. Local is a different concept from Foreigner. 
Healthy <--DistinctFrom--> Cake <--RelatedTo--> Wheat <--RelatedTo--> Rice 
Area <--RelatedTo--> Local <--DistinctFrom--> Foreigner 