TASK 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:`.
PROBLEM: CONTEXT: I have seen this happening more than once. While I don't know the whole theory behind it, each time it happened, there was something just below the hole, let's call it "the lump". What I think happens is that the lump is too heavy. When the batter below it tries to rise, it doesn't have the strength to push up the lump. This could be combined with differences in heat transfer throughout the batter vs. on the batter-lump transition in preventing rising (I am certain they exist, but I don't know whether they have an effect at all). The result is a hole where the batter didn't rise, surrounded by nicely risen batter. As to where the lump comes from: you say "chocolate and pear cake". If you have pear pieces in the batter, right under the surface, they can do this. I have certainly seen it happen when the recipe includes fruit pieces in the batter. If there are no pear pieces, my second guess is badly dissolved flour. The directions for this type of cake normally include folding the whites very gently, and generally erring on the side of too little whisking. This could contribute to uneven batter texture, resulting in lumps. In the second case, the cake may have some less-than-pleasant pieces, but will still be mostly good. If it is fruit, the holes are purely a cosmetic problem. So not much harm done either way, unless you are shooting for a prize at a baking competition.  <sep>  Q: I baked a chocolate and pear cake whose batter is made with yolks, sugar, butter, melted chocolate and amaretti, flour and baking powder and whisked whites. It was (not very evenly) divided in two layers, sandwiching a layer of pear pieces pre-cooked in rum.### My question is: what are the holes due to? A: I have seen this happening more than once. While I don't know the whole theory behind it, each time it happened, there was something just below the hole, let's call it "the lump  Q: Uneven division of batter? A: What I think happens is that the lump is too heavy. When the batter below it tries to rise, it doesn't have the strength to push up the lump  Q: How can this be prevented A: folding the whites very gently, and generally erring on the side of too little whisking  <sep> FOLLOWUP_Q: Any other suggestions?

SOLUTION: Yes

PROBLEM: CONTEXT: In my experience, rice can be cooked in any pot. I cook quite a lot of Japanese style dishes, and as far as I can tell the rice is cooked in the same way as any other.For myself, I've done it in good "induction-able" steel pots, as well as huge (navy galley) aluminium pots, and a couple of low-quality stainless steel things too. They're all fine.Normally, as soon as the pot is at/near boiling, turn the heat down to a low setting and leave it in the pot until it's ready. Then take it off the heat, but leave it covered (don't peek) for another five minutes.Generally, once you've added the water, you put the lid on. You only start the timer when it's boiled and you turn it down, though. That's probably why a glass lid is better, so you can see the boiling. It's not critical to the process, though.  <sep>  Q: Do I need a specific pot to cook Japanese-style rice? A: In my experience, rice can be cooked in any pot  Q: So, from my understanding, there's like a minimum wait time when boiling, and then you pretty much just leave the lid on for a certain amount of time for it to cook. Am I doing something wrong? A: Normally, as soon as the pot is at/near boiling, turn the heat down to a low setting and leave it in the pot until it's ready  Q: What should be the total recommend cooking time for the rice? A: You only start the timer when it's boiled and you turn it down  <sep> FOLLOWUP_Q: I also used Nishiki short-grained rice when I did mine, is that a good choice?

SOLUTION: No

PROBLEM: 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?

SOLUTION:
Yes