Determining that any resource responding to the user's query for the first time does not satisfy one or more criteria (e.g., one or more quality criteria), and responding to such a determination, , Apparatus, and computer-readable media associated with providing content based on a given resource that responds to a subsequent query and satisfies the criteria for presentation to a computer. A given resource that responds to a subsequent query may be a resource in addition to any resources that respond to the initial query, or may be an improved version of the resource that responds to the initial query.
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