Police is related to District. District is related to Area. Block is a type of Area. Block is related to Bar. 
Fiber is related to Wood. Wood is related to Starter. Starter is a type of Culture. 
Police <--RelatedTo--> District <--RelatedTo--> Area <--IsA-- Block <--RelatedTo--> Bar 
Fiber <--RelatedTo--> Wood <--RelatedTo--> Starter --IsA--> Culture 