Reach is related to Extension. Extension is related to Branch. 
Presence is a different concept from Want. Want is related to Urge. Urge is a different concept from Discourage. 
Reach <--RelatedTo--> Extension <--RelatedTo--> Branch 
Presence <--DistinctFrom--> Want <--RelatedTo--> Urge <--DistinctFrom--> Discourage 