Storage is a synonym of Memory. Memory is related to Back. 
Apartment is related to Move. Move is a synonym of Recommend. Recommend is the opposite of Discourage. Discourage is a different concept from Urge. 
Storage <--Synonym--> Memory <--RelatedTo--> Back 
Apartment <--RelatedTo--> Move <--Synonym--> Recommend <--Antonym--> Discourage <--DistinctFrom--> Urge 