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: For ramen, udon, and soba, it is not uncommon for Japanese restaurants to use multiple broths for layered flavors.My friend is from Yamagata in Japan and several of her favorite Udon places will make a sturdy broth with dashi as well as pork and chicken stocks. When I make noodles at home, I almost always start with dashi and fortify with chicken or pork stock. While the aroma of a good dashi is strong, often times it isn't solid enough to feel full-bodied. Try adding other stocks/broths and see where that gets you. Use neckbones and feet if you make your own pork stock.  <sep>  Q: How can I make a Japanese Restaurant style soup ?

A: Yes
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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?

A: Yes
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Q: CONTEXT: Anything can spoil eventually, refrigerated or not. Keeping something under a lid and refrigerated restricts the number of airborne colonizers that might get access to it, and the cold temperature means that even if they get there, they will grow much slower than at room temperature.For something to spoil, it needs to be colonized by bacteria or fungus spores, and it needs to contain some nourishment to support their growth, not too much chemicals that prevent their growth, and not too much competing life forms already present. So, things with a high concentration of salt or sugar tend to be unhospitable to bacteria and fungi growth, because they are hygroscopic (they draw the water out of cells). Extreme high or low pH (eg acidic) also retards growth. Think of things like ketchup, mustard, jelly with labels that say "refrigerate after opening" but most people ignore them. Alcohol is unfriendly if the concentration is too high, and of course natural fermented foods are already occupied by human-friendly bacteria.Ketchup is sealed in a bottle, usually with no fingers or utensils inserted into it, so it stays pretty sterile. It is also protected by being hygroscopic (due to high concentration of sugar and salt) and its acidity. Ketchup as a word and concept is descended from an Indonesian fish sauce, and has been around much longer than refrigeration. I think you can leave it out with no worries unless you see obvious mold growth.  <sep>  Q: Does ketchup belong in the fridge, or the cupboard? A: Ketchup is sealed in a bottle, usually with no fingers or utensils inserted into it, so it stays pretty sterile  Q: I tend to think that ketchup should live in the fridge, once opened, shouldn't that protect it from contamination in the air? A: It is also protected by being hygroscopic (due to high concentration of sugar and salt) and its acidity  <sep> FOLLOWUP_Q: Does it matter that the UK version has sugar from beets rather than HFCS that's in the US version?

A:
No
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