Definition: 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:`.
Input: CONTEXT: This is something that can happen during the manufacture of porcelain. It is due to iron particles in the clay used to make the porcelain, they get this look after being fired. It is part of the mug itself and cannot be removed. Customers don't like isolated black dots on white porcelain, so high end manufacturers only sell items without these dots. But if you bought something in the mid- or low-price range, or B-ware from the high end brands, these specks are common enough. It is only an optical defect, the mug itself is clean and you don't have to do anything more about it.  <sep>  Q: Black spots in porcelain coffee mug? A: This is something that can happen during the manufacture of porcelain  Q: Why does this happen? A: It is due to iron particles in the clay used to make the porcelain, they get this look after being fired. It is part of the mug itself and cannot be removed  <sep> FOLLOWUP_Q: When does it happen?

Yes