Participant is related to Person. Person wants (to) Liberty. Liberty is related to Democracy. Democracy is related to Vote. 
Platform is a synonym of Sidewalk. Sidewalk is a synonym of Mall. 
Participant <--RelatedTo--> Person --Desires--> Liberty <--RelatedTo--> Democracy <--RelatedTo--> Vote 
Platform <--Synonym--> Sidewalk <--Synonym--> Mall 