Perception is related to Ego. Ego is a type of Pride. Pride is a type of Approval. Sanction is a type of Approval. 
Base is related to Settlement. Settlement is related to Town. you are likely to find Town in/at/on County. County is related to District. 
Perception <--RelatedTo--> Ego --IsA--> Pride --IsA--> Approval <--IsA-- Sanction 
Base <--RelatedTo--> Settlement <--RelatedTo--> Town --AtLocation--> County <--RelatedTo--> District 