Question: Generate a question about the topic "Solar eclipse" whose answer would be: As seen from the Earth , a solar eclipse occurs when the Moon passes between the Sun and Earth, and the Moon fully or partially blocks (" occults ") the Sun..
Answer: when do solar eclipses happen??

Question: Generate a question about the topic "Use tax" whose answer would be: A use tax is a type of excise tax levied in the United States by numerous state governments..
Answer: what are use taxes??

Question: Generate a question about the topic "Health care in the United States" whose answer would be: According to the World Health Organization (WHO), the United States spent more on health care per capita ($7,146), and more on health care as percentage of its GDP (15.2%), than any other nation in 2008..
Answer:
how much does united states spend on health care?