Input: Article: During the later stages of World War II, the entire Cold War, and to a lesser extent afterwards, uranium-235 has been used as the fissile explosive material to produce nuclear weapons. Initially, two major types of fission bombs were built: a relatively simple device that uses uranium-235 and a more complicated mechanism that uses plutonium-239 derived from uranium-238. Later, a much more complicated and far more powerful type of fission/fusion bomb (thermonuclear weapon) was built, that uses a plutonium-based device to cause a mixture of tritium and deuterium to undergo nuclear fusion. Such bombs are jacketed in a non-fissile (unenriched) uranium case, and they derive more than half their power from the fission of this material by fast neutrons from the nuclear fusion process.

Now answer this question: From what isotope of uranium is plutonium-239 derived?

Output: 238

Input: Article: In the 1950s, as a young woman at the start of her reign, Elizabeth was depicted as a glamorous "fairytale Queen". After the trauma of the Second World War, it was a time of hope, a period of progress and achievement heralding a "new Elizabethan age". Lord Altrincham's accusation in 1957 that her speeches sounded like those of a "priggish schoolgirl" was an extremely rare criticism. In the late 1960s, attempts to portray a more modern image of the monarchy were made in the television documentary Royal Family and by televising Prince Charles's investiture as Prince of Wales. In public, she took to wearing mostly solid-colour overcoats and decorative hats, which allow her to be seen easily in a crowd.

Now answer this question: What was the time after WWII heralded as?

Output: "new Elizabethan age"

Input: Article: As the initial punk movement dwindled, vibrant new scenes began to coalesce out of a variety of bands pursuing experimental sounds and wider conceptual territory in their work. Many of these artists drew on backgrounds in art and viewed their music as invested in particular political or aesthetic agendas. British music publications such as the NME and Sounds developed an influential part in this nascent post-punk culture, with writers like Jon Savage, Paul Morley and Ian Penman developing a dense (and often playful) style of criticism that drew on critical theory, radical politics and an eclectic variety of other sources.

Now answer this question: What nationality's music magazines had an influential part of post-punk culture?

Output:
British