Diplomatic is related to Ambassador. Ambassador is related to Representative. Representative is a synonym of Deputy. Deputy is a different concept from Chief. 
Architecture is related to Build. Build is a type of Oversee. 
Diplomatic <--RelatedTo--> Ambassador <--RelatedTo--> Representative <--Synonym--> Deputy <--DistinctFrom--> Chief 
Architecture <--RelatedTo--> Build --IsA--> Oversee 