Ban is a synonym of Bar. Bar is related to Surface. Surface is related to Silk. Silk is related to Very. 
you are likely to find Fan in/at/on South. Southwest is derived from South. Southwest is part of West. West is related to News. 
Ban <--Synonym--> Bar <--RelatedTo--> Surface <--RelatedTo--> Silk <--RelatedTo--> Very 
Fan --AtLocation--> South <--DerivedFrom-- Southwest --PartOf--> West <--RelatedTo--> News 