Blank is a type of Prevent. Prevent is a synonym of Forbid. Ban is a type of Forbid. 
you are likely to find Salad in/at/on Refrigerator. you are likely to find Refrigerator in/at/on House. Housing is derived from House. Housing is a type of Structure. 
Blank --IsA--> Prevent <--Synonym--> Forbid <--IsA-- Ban 
Salad --AtLocation--> Refrigerator --AtLocation--> House <--DerivedFrom-- Housing --IsA--> Structure 