Input: Read this: Natives of North America began practicing farming approximately 4,000 years ago, late in the Archaic period of North American cultures. Technology had advanced to the point that pottery was becoming common and the small-scale felling of trees had become feasible. Concurrently, the Archaic Indians began using fire in a controlled manner. Intentional burning of vegetation was used to mimic the effects of natural fires that tended to clear forest understories. It made travel easier and facilitated the growth of herbs and berry-producing plants, which were important for both food and medicines.
Question: How did Archaic Indians use fire?

Output: a controlled manner


Input: Read this: Anti-miscegenation laws were passed in most states during the 18th, 19th and early 20th centuries, but this did not prevent white slaveholders, their sons, or other powerful white men from taking slave women as concubines and having multiracial children with them. In California and the western US, there were greater numbers of Latino and Asian residents. These were prohibited from official relationships with whites. White legislators passed laws prohibiting marriage between European and Asian Americans until the 1950s.
Question: Were there any laws against marriage between whites and Asians in the US?

Output: White legislators passed laws prohibiting marriage between European and Asian Americans until the 1950s.


Input: Read this: ^9 Sub-groups of Croats include Bunjevci (in Bačka), Šokci (in Slavonia and Vojvodina), Janjevci (in Kosovo), Burgenland Croats (in Austria), Bosniaks (in Hungary), Molise Croats (in Italy), Krashovans (in Romania), Moravian Croats (in the Czech Republic)
Question: Where are Burgenland Croats located?

Output: Austria


Input: Read this: Besides Prince William and Prince Harry, members of the extended British Royal Family who have attended Eton include Prince Richard, Duke of Gloucester and his son Alexander Windsor, Earl of Ulster; Prince Edward, Duke of Kent, his eldest son George Windsor, Earl of St Andrews and grandson Edward Windsor, Lord Downpatrick and his youngest son Lord Nicholas Windsor; Prince Michael of Kent and his son Lord Frederick Windsor; James Ogilvy, son of Princess Alexandra and the Right Honourable Angus Ogilvy, himself an Eton alumnus. Prince William of Gloucester (1942-1972) also attended Eton, as did George Lascelles, 7th Earl of Harewood, son of Princess Mary, Princess Royal.
Question: In what year did Prince Edward, Duke of Kent start attending Eton?

Output:
unanswerable