Q: What is a question about this article? If the question is unanswerable, say "unanswerable".
Iranian scientists outside Iran have also made some major contributions to science. In 1960, Ali Javan co-invented the first gas laser, and fuzzy set theory was introduced by Lotfi Zadeh. Iranian cardiologist, Tofy Mussivand invented and developed the first artificial cardiac pump, the precursor of the artificial heart. Furthering research and treatment of diabetes, HbA1c was discovered by Samuel Rahbar. Iranian physics is especially strong in string theory, with many papers being published in Iran. Iranian-American string theorist Kamran Vafa proposed the Vafa-Witten theorem together with Edward Witten. In August 2014, Maryam Mirzakhani became the first-ever woman, as well as the first-ever Iranian, to receive the Fields Medal, the highest prize in mathematics.
Which Iranian scientist discovered HbA1c to further treatment and research of diabetes?
A: Samuel Rahbar

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The Queen, who opened the 1976 Summer Olympics in Montreal, also opened the 2012 Summer Olympics and Paralympics in London, making her the first head of state to open two Olympic Games in two different countries. For the London Olympics, she played herself in a short film as part of the opening ceremony, alongside Daniel Craig as James Bond. On 4 April 2013, she received an honorary BAFTA for her patronage of the film industry and was called "the most memorable Bond girl yet" at the award ceremony.
When did Elizabeth open the Summer Olympics in Montreal?
A: 1976

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To feel or see the difference between aspirated and unaspirated sounds, one can put a hand or a lit candle in front of one's mouth, and say pin [pʰɪn] and then spin [spɪn]. One should either feel a puff of air or see a flicker of the candle flame with pin that one does not get with spin. In most dialects of English, the initial consonant is aspirated in pin and unaspirated in spin.
Which word would be aspirated in most English dialects?
A: unanswerable

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However, the NSA's report was completely disproved by Croatian experts. The report failed to recognize that Tito was a native speaker of the very distinctive local Kajkavian dialect of Zagorje. The acute accent, present only in Croatian dialects, which Tito is perfectly pronouncing, is the strongest proof of Tito's belonging to Kajkavian dialect.
What was the distinct local dialect Tito spoke?
A:
Zagorje