Answer is related to Ban. Ban is a synonym of Bar. Bar is related to Component. Component is related to Post. 
Booth is related to Restaurant. Restaurant is related to Food. Food is etymologically related to Foster. 
Answer <--RelatedTo--> Ban <--Synonym--> Bar <--RelatedTo--> Component <--RelatedTo--> Post 
Booth <--RelatedTo--> Restaurant <--RelatedTo--> Food --EtymologicallyRelatedTo--> Foster 