instruction:
Two analogies that relate items to the associated containers is given in the form "A : B. C : ?". "A : B" relates item A to its associated container B. Your task is to replace the question mark (?) with the appropriate container for the given item C, following the "A : B" relation.
question:
poster : tube. cereal : ?
answer:
box


question:
diapers : box. ketchup : ?
answer:
bottle


question:
diapers : bag. ketchup : ?
answer:

bottle