Citizen is the opposite of Alien. Alien is a synonym of Reject. Reject is a synonym of Resist. 
Couch can be used for Comfort. Comfort is related to Food. you are likely to find Food in/at/on Shop. you are likely to find Clothes in/at/on Shop. 
Citizen <--Antonym--> Alien <--Synonym--> Reject <--Synonym--> Resist 
Couch --UsedFor--> Comfort <--RelatedTo--> Food --AtLocation--> Shop <--AtLocation-- Clothes 