Ambassador is related to Nation. Nation is related to Citizen. Citizen is a synonym of Local. Local is related to Branch. 
Run is a type of Be. Reach is a type of Be. Reach is related to Climb. Climb is the opposite of Related. 
Ambassador <--RelatedTo--> Nation <--RelatedTo--> Citizen <--Synonym--> Local <--RelatedTo--> Branch 
Run --IsA--> Be <--IsA-- Reach <--RelatedTo--> Climb <--Antonym--> Related 