Input: Read this: After dynastic quarrels however, there was a Christian reconquest in 1072. The family who returned the city to Christianity were called the Hautevilles, including Robert Guiscard and his army, who is regarded as a hero by the natives. It was under Roger II of Sicily that Norman holdings in Sicily and the southern part of the Italian Peninsula were promoted from the County of Sicily into the Kingdom of Sicily. The Kingdom's capital was Palermo, with the King's Court held at the Palazzo dei Normanni. Much construction was undertaken during this period, such as the building of Palermo Cathedral. The Kingdom of Sicily became one of the wealthiest states in Europe.
Question: Who is considered a hero by natives for ending Muslim control of Palermo?

Output: Robert Guiscard

Input: Read this: Technically, all these coins are still legal tender at face value, though some are far more valuable today for their numismatic value, and for gold and silver coins, their precious metal value. From 1965 to 1970 the Kennedy half dollar was the only circulating coin with any silver content, which was removed in 1971 and replaced with cupronickel. However, since 1992, the U.S. Mint has produced special Silver Proof Sets in addition to the regular yearly proof sets with silver dimes, quarters, and half dollars in place of the standard copper-nickel versions. In addition, an experimental $4.00 (Stella) coin was also minted in 1879, but never placed into circulation, and is properly considered to be a pattern rather than an actual coin denomination.
Question: What was the only coin with any copper content in circulation from 1965 to 1970?

Output: unanswerable

Input: Read this: Beginning in the late 1910s and early 1920s, Whitehead gradually turned his attention from mathematics to philosophy of science, and finally to metaphysics. He developed a comprehensive metaphysical system which radically departed from most of western philosophy. Whitehead argued that reality consists of processes rather than material objects, and that processes are best defined by their relations with other processes, thus rejecting the theory that reality is fundamentally constructed by bits of matter that exist independently of one another. Today Whitehead's philosophical works particularly Process and Reality are regarded as the foundational texts of process philosophy.
Question: After moving away from mathematics, what subjects did Whitehead explore?

Output: philosophy of science, and finally to metaphysics

Input: Read this: 58.1% of the population described themselves in the 2011 census return as being at least nominally Christian and 0.8% as Muslim with all other religions represented by less than 0.5% each. The portion of people without a religion is 32.9%; above the national average of 24.7%. 7.1% did not state their religious belief. Since the 2001 Census, the number of Christians and Jews has decreased (-16% and -7% respectively), while all other religions have increased and non-religious people have almost doubled in number.
Question: What percentage of people in the United Kingdom describe themselves as non-religious?

Output:
24.7%