In this task you will be given an answer to a question. You need to generate a question. The answer given should be a correct answer for the generated question.

Q: The Selective Service System is an independent agency of the United States government that maintains information on those potentially subject to military conscription. Virtually all male U.S. citizens and male immigrant non-citizens between the ages of 18 and 25 are required by law to have registered within 30 days of their 18th birthdays and must notify Selective Service within ten days of any changes to any of the information they provided on their registration cards, like a change of address. A 2010 Government Accountability Office report estimated the registration rate at 92% with the names and addresses of over 16.2 million men on file. However, the only audit of the addresses of registrants on file with the Selective Service System, in 1982, found that 20 -- 40% of the addresses on file with the Selective Service System for registrants in the age groups that would be drafted first were already outdated, and up to 75% for those registrants in their last year of potential eligibility to be drafted would be invalid.

A: when do you need to sign up for selective service
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Q: A DEA number (DEA Registration Number) is an identifier assigned to a health care provider (such as a physician, optometrist, pharmacist, dentist, or veterinarian) by the United States Drug Enforcement Administration allowing them to write prescriptions for controlled substances.

A: what is a dea license for a physician
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Q: Yin is the black side with the white dot in it, and yang is the white side with the black dot in it. The relationship between yin and yang is often described in terms of sunlight playing over a mountain and a valley. Yin (literally the' shady place' or' north slope') is the dark area occluded by the mountain's bulk, while yang (literally the' sunny place' or' south slope') is the brightly lit portion. As the sun moves across the sky, yin and yang gradually trade places with each other, revealing what was obscured and obscuring what was revealed.

A:
which is the yin and which is the yang
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