Enact is a synonym of Pass. Pass is related to Toll. Toll is related to Payment. Payment is related to Given. 
West is related to Pioneer. Pioneer is related to Person. Key is a type of Person. you are likely to find Key in/at/on Idea. 
Enact <--Synonym--> Pass <--RelatedTo--> Toll <--RelatedTo--> Payment <--RelatedTo--> Given 
West <--RelatedTo--> Pioneer <--RelatedTo--> Person <--IsA-- Key --AtLocation--> Idea 