Problem: Umayyad Caliphate:

However many early history books like the Islamic Conquest of Syria Fatuhusham by al-Imam al-Waqidi state that after the conversion to Islam Muawiyah's father Abu Sufyan ibn Harb and his brothers Yazid ibn Abi Sufyan were appointed as commanders in the Muslim armies by Muhammad. Muawiyah, Abu Sufyan ibn Harb, Yazid ibn Abi Sufyan and Hind bint Utbah fought in the Battle of Yarmouk. The defeat of the Byzantine Emperor Heraclius at the Battle of Yarmouk opened the way for the Muslim expansion into Jerusalem and Syria.

What battle did the Byzantines win?
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A: unanswerable


Problem: PlayStation 3's initial production cost is estimated by iSuppli to have been US$805.85 for the 20 GB model and US$840.35 for the 60 GB model. However, they were priced at US$499 and US$599 respectively, meaning that units may have been sold at an estimated loss of $306 or $241 depending on model, if the cost estimates were correct, and thus may have contributed to Sony's games division posting an operating loss of ¥232.3 billion (US$1.97 billion) in the fiscal year ending March 2007. In April 2007, soon after these results were published, Ken Kutaragi, President of Sony Computer Entertainment, announced plans to retire. Various news agencies, including The Times and The Wall Street Journal reported that this was due to poor sales, while SCEI maintains that Kutaragi had been planning his retirement for six months prior to the announcement.
In contrast to the production cost, what was the retail price for a 20 GB PlayStation 3?
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Answer: US$499


Q: What is a question about this article? If the question is unanswerable, say "unanswerable".
The Australian government controls the exclusive economic zone (EEZ) and revenue from it extending 200 nautical miles (370 km) around Norfolk Island (roughly 428,000km2) and territorial sea claims to three nautical miles (6 km) from the island. There is a strong belief on the island that some of the revenue generated from Norfolk's EEZ should be available to providing services such as health and infrastructure on the island, which the island has been responsible for, similar to how the Northern Territory is able to access revenue from their mineral resources. The exclusive economic zone provides the islanders with fish, its only major natural resource. Norfolk Island has no direct control over any marine areas but has an agreement with the Commonwealth through the Australian Fisheries Management Authority (AFMA) to fish "recreationally" in a small section of the EEZ known locally as "the Box". While there is speculation that the zone may include oil and gas deposits, this is not proven. There are no major arable lands or permanent farmlands, though about 25 per cent of the island is a permanent pasture. There is no irrigated land. The island uses the Australian dollar as its currency.
What is speculated to be forbidden in Norfolk Island's EEZ zone?
A: unanswerable


Context and question: The second major event of the early reign of Abd al-Malik was the construction of the Dome of the Rock in Jerusalem. Although the chronology remains somewhat uncertain, the building seems to have been completed in 692, which means that it was under construction during the conflict with Ibn al-Zubayr. This had led some historians, both medieval and modern, to suggest that the Dome of the Rock was built as a destination for pilgrimage to rival the Kaaba, which was under the control of Ibn al-Zubayr.
Where was the Dome of the Rock built?
Answer: Jerusalem


Question: Inflammatory diarrhea occurs when there is damage to the mucosal lining or brush border, which leads to a passive loss of protein-rich fluids and a decreased ability to absorb these lost fluids. Features of all three of the other types of diarrhea[clarification needed] can be found in this type of diarrhea. It can be caused by bacterial infections, viral infections, parasitic infections, or autoimmune problems such as inflammatory bowel diseases. It can also be caused by tuberculosis, colon cancer, and enteritis.[citation needed]
Is there an answer to this question: What does enteritis lead to?

Answer: unanswerable


Problem: Freemasonry:

The earliest known American lodges were in Pennsylvania. The Collector for the port of Pennsylvania, John Moore, wrote of attending lodges there in 1715, two years before the formation of the first Grand Lodge in London. The Premier Grand Lodge of England appointed a Provincial Grand Master for North America in 1731, based in Pennsylvania. Other lodges in the colony obtained authorisations from the later Antient Grand Lodge of England, the Grand Lodge of Scotland, and the Grand Lodge of Ireland, which was particularly well represented in the travelling lodges of the British Army. Many lodges came into existence with no warrant from any Grand Lodge, applying and paying for their authorisation only after they were confident of their own survival.

When did the lodges without prior authorisations apply to be recognized?
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A:
after they were confident of their own survival