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: 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?
Yes

CONTEXT: Butter is at most 82% oil and the rest is water. So, you're going to need to add more butter for the same amount of oil. Besides, you need to adjust the liquid content accordingly since you are going to have more water than you planned.If you are going to use the same amount of oil, then it will not make any difference other than the taste. Just make sure they are of same state (i.e. melted butter instead of vegetable oil or vice versa)  <sep>  Q: Substituting butter for oil: Does it matter for baked goods? A: Butter is at most 82% oil and the rest is water. So, you're going to need to add more butter for the same amount of oil  Q: Do you know how I would do that? A: you need to adjust the liquid content accordingly since you are going to have more water than you planned  <sep> FOLLOWUP_Q: Will it have a buttery taste?
No

CONTEXT: The term is not really defined that way. In the strict sense, it only has meaning for lean doughs - made of only flour, water, yeast and salt, eventually preferments or later mixins like seeds. You can extend it to enriched doughs (those that have fat, milk, eggs, tomato juice, etc.) but then it is no longer sharply defined. Calculating the exact content of water (e.g. adding to the calculation 17 g of water for every 100 g of butter) are pretty useless, because the water bound in an emulsion or other kind of colloid doesn't behave the same way as free water when making a dough. So, a dough with 100 g water and 100 g butter will be extremely different from a dough with 117 g of water, and still pretty different from one with 117 g of water and 83 g of oil. So, there is no real formula any more to create an actual percentage. The concept still stays somewhat useful in this case, but you have to "play it by ear". When you are trying to judge how soft a given enriched dough will be, you can start by calculating all the liquid and fat ingredients as if they were "hydration", which gives you a rough guide to compare it to other doughs, and then you have to make it and gain a tactile understanding of how it actually behaves.  <sep>  Q: What counts as "hydration" when figuring Dough Hydration? A: The term is not really defined that way. In the strict sense, it only has meaning for lean doughs  Q: So it won't work for an enriched dough? A: You can extend it to enriched doughs (those that have fat, milk, eggs, tomato juice, etc.) but then it is no longer sharply defined  Q: Would sour cream count as a liquid? A: you can start by calculating all the liquid and fat ingredients as if they were "hydration  <sep> FOLLOWUP_Q: Would eggs count as hydration?

Yes