Machine can be used for Vote. Ballot is a type of Vote. Ballot is related to Elect. 
Phrase is a synonym of Couch. Couch is related to Seat. Seat is related to County. 
Machine --UsedFor--> Vote <--IsA-- Ballot <--RelatedTo--> Elect 
Phrase <--Synonym--> Couch <--RelatedTo--> Seat <--RelatedTo--> County 