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:'.

[EX Q]: CONTEXT: Mast O Khiar, as you mention mainly consist of plain yogurt and cucumbers and most recipe do not require much more than that. Because of such, the shelf life for the yogurt product will be the shelf life of the yogurt itself. If it is a store bought yogurt, then the shelf life should be about 2 weeks in the refrigerator.Make sure to store the sauce in an air-tight container. Most tubberware should work. Those soup containers from Chinese takeout orders work perfectly.EDIT: After a bit of a debate in cooking chat, I decided to change my answer a little. The reason I said 2 week is because personally I had eaten 2 week old Mast O Khiar. However it could be recipe dependant so it could be different for a different recipe. However it is very easy to tell whether yogurt OR cucumber is bad.Mast O Khiar should have a very fresh/clean aroma. When yogurt turn bad, it releases a rancid smell. If it smells bad, dont eat it.If you see fuzzy mold it's a good idea to throw it out. <sep> Q: I made kubideh kabobs with saffron rice for my fiance and I last night, and it was a huge success. However, my fiance wished we had some mast o khiar (yogurt-cucumber sauce) to go with it, as what we would normally get from a kabob takeout place### Now, given that this is the first time Persian food has ever been made in this house, I have concerns about any reasonably sized batch of this yogurt sauce being consumed in time. A: Mast O Khiar, as you mention mainly consist of plain yogurt and cucumbers and most recipe do not require much more than that <sep> FOLLOWUP_Q: how long might this be safely stored in a refrigerator?
[EX A]: Yes

[EX Q]: CONTEXT: Caffeine is bitter, tea isn't too bitter because as you mentioned it's only got 40mg of caffeine. If you then triple the amount in there it's going to taste that way. Try adding 3 tea bags to your cup and I'm certain it'll taste just as bitter.Energy drinks have copious amounts of sweeteners added hence why they don't taste like caffeine. If you are hell bent on more caffeine without the associated bitterness but not adding sugar maybe a sweetener like stevia would be the way forward... <sep> Q: Why does caffeine taste bitter when added to tea? A: Caffeine is bitter Q: Why doesn't caffeine that is already in the tea or in an energy drink taste bitter? A: Energy drinks have copious amounts of sweeteners added hence why they don't taste like caffeine Q: How should caffeine be added to drinkable fluids so it has no taste? A: Try adding 3 tea bags to your cup and I'm certain it'll taste just as bitter Q: What can be done to make it taste better without adding lots of sugar? A: If you are hell bent on more caffeine without the associated bitterness but not adding sugar maybe a sweetener like stevia would be the way forward <sep> FOLLOWUP_Q: Why is caffeine bitter?
[EX A]: No

[EX Q]: CONTEXT: In a cookbook that old, the sour cream referenced is probably a home-fermented variety, used as a preservation method in the days before widespread home refrigeration. You can still do this with the appropriate bacterial cultures, but most of us now buy our sour cream at the store instead. That product is similar, but made in much larger batches with a highly standardized, refined bacterial culture, producing a product with a predictable sourness and texture. Home-cultured versions are more variable, but they use similar processes on a much smaller scale.Whether you want to call this the "same" is partly a linguistic distinction that depends on how much you want to consider the differences in scale and equipment between pre-refrigeration and modern methods.In contrast, the addition of something sour to cream is really a substitute, used when you don't have a proper sour cream available. A cook back in the 1890s could use the same substitution then as we might today. But the production of sour cream (and all sorts of fermented milk products, such as yogurt and kefir) is much older than that, and there would have been some variety of "traditional" sour cream available, though not universally or year-round in the days before mechanized food distribution systems. <sep> Q: Is sour cream in olde recipes the same as sour cream today? A: the sour cream referenced is probably a home-fermented variety, used as a preservation method in the days before widespread home refrigeration Q: How would I make a home-fermented variety of sour cream? A: You can still do this with the appropriate bacterial cultures, but most of us now buy our sour cream at the store instead Q: That's okay!###I understand that it's not really common to make sour cream at home from what you're saying. Can I make heavy cream at home? A: A cook back in the 1890s <sep> FOLLOWUP_Q: What are the steps necessary to make it?
[EX A]:
Yes