You are given a passage. You need to construct a question about the information present in the passage. Construct a question in such a way that (i) it is unambiguous, (ii) its answer is the whole paragraph. Avoid creating questions that can be answered correctly without actually understanding the paragraph.

[Q]: The clinical term for bad breath is halitosis.  Bad breath is primarily caused by poor oral hygiene, but can also can be caused by retained food particles or gum disease. Proper brushing including brushing the tongue, cheeks, and the roof of the mouth will remove bacteria and food particles. Flossing removes accumulated bacteria, plaque and food that may be trapped between teeth. Mouth rinses are effective in temporary relief of bad breath. Consult your dentist and/or physician if the condition persists.\n\nIt is important to practice good oral hygiene, such as brushing and flossing your teeth at least twice a day. To alleviate the odor, clean your tongue with your toothbrush or a tongue scraper, a plastic tool that scrapes away bacteria that builds on the tongue. Chewing sugar-free gum also may help control the odor. If you have dentures or a removable appliance, such as a retainer or mouthguard, clean the appliance thoroughly before placing it back in your mouth. Before you use mouth rinses, deodorizing sprays or tablets, talk with your dentist because these products only mask the odor temporarily, and some products work better than others.
[A]: What causes bad breath and how do you get rid of it?


[Q]: This is pretty much a question of the definition you are using.\n\nIn a strict definition, conventional solids have a crystalline structure. Under this definition, glass is a supercooled, highly viscous liquid rather than a conventional (crystalline) solid. \n\nIn many ways, glass acts like a solid. Using that behaviour as a criterion, glass is a solid.
[A]: Over hundreds of years, the glass in glass windows sinks down to the bottem.  So is glass a liquid or a solid?


[Q]: Clearly you should join him....what fun!
[A]:
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