Voting is related to Elect. Elect is related to Campaign. Campaign is a synonym of Drive. 
Individual is related to Step. Step is related to Gate. you are likely to find Gate in/at/on Wall. 
Voting <--RelatedTo--> Elect <--RelatedTo--> Campaign <--Synonym--> Drive 
Individual <--RelatedTo--> Step <--RelatedTo--> Gate --AtLocation--> Wall 