[Q]: Sentence: The greater 1 MHz bandwidth and 6 Mbit/s bit rate of the Picturephone in the 1970s also did not achieve commercial success, mostly due to its high cost, but also due to a lack of network effect with only a few hundred Picturephones in the world, users had extremely few contacts they could actually call to, and interoperability with other videophone systems would not exist for decades. Question: When was the first slow-scan video systems researched?
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[A]: no

[Q]: Sentence: Altitudes tend to be the highest to the south and west and the highest peak of the province, Huangmaojian Peak (1,929 meters or 6,329 feet), is located there. Question: What is the highest peak of the province?
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[A]: yes

[Q]: Sentence: He proclaimed that the revolution meant "freedom, socialism, and unity", and over the coming years implemented measures to achieve this. Question: How did Gaddafi announced his leadership?:
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[A]:
no