Given an entity, a before event, an after event, and an attribute related to the entity, generate a sentence as output. Your sentence should show the changes in the attribute of the entity.

entity: the cocoa and margarine mixture
before: in separate bowl from milk and water mixture,
after: in same bowl with milk and water mixture,
attr: container
container of the cocoa and margarine mixture was in a separate bowl from the milk and water mixture, before and in the same bowl with the milk and water mixture, afterwards