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:`.

Q: CONTEXT: The cause is that the mousse dries out on the surface. It builds a skin of dehydrated mousse. It happens with most cremes, not only your yolk foam. To prevent it, put plastic wrap on the mousse. Don't span it over the bowl, press it on the surface itself, without leaving air between the mousse and wrap. Your mousse will stay soft. This also works for custards and starch-thickened puddings. In general, also cover other things you put in the fridge, or they can get an unpleasant odour.  <sep>  Q: Why is there a rubber like skin on surface of my chocolate mousse?

A: Yes
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Q: CONTEXT: Flour (+ water, either directly or from other ingredients such as egg white) gives the pastry structure. As you knead the flour, the gluten network develops and results in elasticity. When cooked, water evaporates from the dough leaving a rigid gluten skeleton. Fat does not mix with water and thus stay in blobs in between the gluten network. This weakens the gluten structure, making the pastry crumble.For this reason, you often see in recipes for shortcrust to avoid overmixing the fat. Buttery biscuits such as shortbread crumble more than crackers, which have more water. The same rationale applies to puff pastry. The thin fat layers are impermeable, so water steam gets trapped and exercise pressure upwards, lifting the pastry up.Quoting @GdD in the comments, the punchline is:more fat = crumblier, less fat has more structure.  <sep>  Q: How does altering the fat-to-flour ratio affect the pastry? A: more fat = crumblier, less fat has more structure  Q: Is it only crumblier after it bakes? A: The thin fat layers are impermeable, so water steam gets trapped and exercise pressure upwards, lifting the pastry up  Q: Does the type of flour effect the mixture? A: Flour (+ water, either directly or from other ingredients such as egg white) gives the pastry structure. As you knead the flour, the gluten network develops and results in elasticity  <sep> FOLLOWUP_Q: Can you knead the dough too much?

A: Yes
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Q: CONTEXT: Yes, you can detect the difference. How much of a difference will depend on the quality of both the imitation and of the real thing.That said, it's difficult if not impossible for me to pick out the differences in baked goods. So I keep both around, and use the (much cheaper) imitation stuff for baking, and the real stuff for sauces, icing, custards, milkshakes, etc.Incidentally... In a pinch, bourbon makes a half-decent substitute for vanilla.  <sep>  Q: What is the functional difference between imitation vanilla and true vanilla extract? A: it's difficult if not impossible for me to pick out the differences in baked goods  <sep> FOLLOWUP_Q: Why is it difficult? One is chemically made and the other is an extract

A:
No
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