Passage is related to Road. Road is related to Transport. Transport is related to Purpose. Purpose is related to Motive. 
Spokesman is etymologically related to Man. Man is related to Dog. Dog have Nose. 
Passage <--RelatedTo--> Road <--RelatedTo--> Transport <--RelatedTo--> Purpose <--RelatedTo--> Motive 
Spokesman --EtymologicallyRelatedTo--> Man <--RelatedTo--> Dog --HasA--> Nose 