Free is a synonym of Deliver. Deliver is related to Home. you are likely to find Home in/at/on City. City is related to Civilization. 
Personnel is related to Builder. Builder is related to Guy. Guy is related to Person. 
Free <--Synonym--> Deliver <--RelatedTo--> Home --AtLocation--> City <--RelatedTo--> Civilization 
Personnel <--RelatedTo--> Builder <--RelatedTo--> Guy <--RelatedTo--> Person 