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.
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Question: A coach (also motor coach) is a type of bus used for conveying passengers. In contrast to transit buses that typically used within a single metropolitan region, coaches are used for longer-distance bus service. Often used for intercity -- or even international -- bus service, other coaches are also used for private charter for various purposes.

Answer: whats the difference between a coach and a bus


Question: As a sovereign country (2016), Texas would be the 10th largest economy in the world by GDP (ahead of South Korea and Canada). Texas's household income was $48,259 in 2010 ranking 25th in the nation. The state debt in 2012 was calculated to be $121.7 billion, or $7,400 per taxpayer. Texas has the second largest population in the country after California.

Answer: how big is texas economy in the world


Question: 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.

Answer:
which is the yin and which is the yang