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: There are a couple of things you can do to prevent sugar crystallising. You can add some glucose syrup, or you can 'invert' the sugar by adding some acid, namely cream of tartar. Both should be readily available, online if not at your supermarket. Cream of tartar is also useful when making meringue.  <sep>  Q: How can I prevent simple syrup from crystallizing? A: There are a couple of things you can do to prevent sugar crystallising  Q: well when I store it in the fridge it seems to crystallize A: You can add some glucose syrup, or you can 'invert' the sugar by adding some acid, namely cream of tartar  <sep> FOLLOWUP_Q: Ok, how long should I expect the simple syrup to keep?

SOLUTION: No

PROBLEM: CONTEXT: It sounds very much like you didn't manage to completely dissolve the sugar. It's also possible to get a bad texture from ice crystals in your ice cream, but I don't think you'd describe it as gritty or sandy, just icy.It can be rather difficult to dissolve that much sugar in liquid, especially if it's cold straight from the fridge. You might want to try heating it gently and stirring, and being careful to go until there's no undissolved sugar hiding at the bottom. That does make the chilling take a bit longer, probably more like 4-8 hours or overnight, not just 1-2 hours. But in my experience heating to dissolve is pretty much standard in ice cream recipes, presumably because it's about the only way to do it easily.  <sep>  Q: My homemade ice cream texture is gritty/sandy, any advice? A: It sounds very much like you didn't manage to completely dissolve the sugar  Q: How should I do this? A: You might want to try heating it gently and stirring, and being careful to go until there's no undissolved sugar hiding at the bottom  <sep> FOLLOWUP_Q: Should I add the cream as the next step?

SOLUTION: No

PROBLEM: CONTEXT: I agree with yossarian, if I question it, I chuck it. Although in this case, the salmon probably will not harm you, it might just taste bad. Loss of moisture (freezer burn), taking on of flavours, etc. I wouldn't eat it because it wouldn't taste great. My father-in-law would eat it, because you don't throw out food (his rule). Bottom line, if it has been in the freezer for those two years straight, it won't give you food poisoning or harm you. It's just a matter of palate. But rest assured, it won't taste great.  <sep>  Q: Can I still eat this fish?### I just found a couple of salmon fillets in my freezer that seem to have been there for about two years. Are they still edible, or should I bin them? A: if it has been in the freezer for those two years straight, it won't give you food poisoning or harm you  <sep> FOLLOWUP_Q: So I can still eat these?

SOLUTION:
Yes