Electrical is related to Ground. Ground is related to Ceiling. Ceiling can Metaphor. Metaphor is related to Live. 
Town can be used for Convenience. Town is related to Street. 
Electrical <--RelatedTo--> Ground <--RelatedTo--> Ceiling --CapableOf--> Metaphor <--RelatedTo--> Live 
Convenience <--UsedFor-- Town <--RelatedTo--> Street 