Given the task definition and input, reply with output. Given a paragraph about cooking, and a set of conversational questions and answers about the paragraph, say whether the passage contains sufficient information to answer the follow-up question. Say Yes if it is answerable; otherwise, say No. The paragraph has the prefix 'CONTEXT:'. Each conversation question has a prefix 'Q:' followed by the answer prefix 'A:', and the follow-up question has a prefix 'FOLLOWUP_Q:'.

CONTEXT: Overly sour yogurt is a sign of inconsistent inoculationCheck the type of culture you are using, and ensure you are keeping the yogurt above 37C for more than six hours. The yogurt should finish as a solid lump that resists pouring, not a thick liquid, or a lumpy pastePouring off the whey and straining the yogurt makes it more creamy and taste sweeterThickeners are not required, just complete inoculationFor sweet yogurt dishes I mostly use sour berries (blackberry, raspberry etc) so it is expected to be somewhat sour anyway <sep> Q: How to reduce the natural sourness of homemade frozen yogurt? A: Pouring off the whey and straining the yogurt makes it more creamy and taste sweeter <sep> FOLLOWUP_Q: Do I need to cook it to separate the whey out or just leave it to drain for a certain amount of time?
Yes