Problem: In the fifth century Strasbourg was occupied successively by Alemanni, Huns, and Franks. In the ninth century it was commonly known as Strazburg in the local language, as documented in 842 by the Oaths of Strasbourg. This trilingual text contains, alongside texts in Latin and Old High German (teudisca lingua), the oldest written variety of Gallo-Romance (lingua romana) clearly distinct from Latin, the ancestor of Old French. The town was also called Stratisburgum or Strateburgus in Latin, from which later came Strossburi in Alsatian and Straßburg in Standard German, and then Strasbourg in French. The Oaths of Strasbourg is considered as marking the birth of the two countries of France and Germany with the division of the Carolingian Empire.
What language called Strasbourg Strossburi?
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Answer: Alsatian


Problem: According to tradition, the Umayyad family (also known as the Banu Abd-Shams) and Muhammad both descended from a common ancestor, Abd Manaf ibn Qusai, and they originally came from the city of Mecca. Muhammad descended from Abd Manāf via his son Hashim, while the Umayyads descended from Abd Manaf via a different son, Abd-Shams, whose son was Umayya. The two families are therefore considered to be different clans (those of Hashim and of Umayya, respectively) of the same tribe (that of the Quraish). However Muslim Shia historians suspect that Umayya was an adopted son of Abd Shams so he was not a blood relative of Abd Manaf ibn Qusai. Umayya was later discarded from the noble family. Sunni historians disagree with this and view Shia claims as nothing more than outright polemics due to their hostility to the Umayyad family in general. They point to the fact that the grand sons of Uthman, Zaid bin amr bin uthman bin affan and Abdullah bin Amr bin Uthman got married to the Sukaina and Fatima the daughters of Hussein son of Ali to show closeness of Banu hashem and Bani Ummayah.
Who was the grandson of Zaid bin amr bin uthman bin affan?
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Answer: unanswerable


Problem: Fimbriae (sometimes called "attachment pili") are fine filaments of protein, usually 2–10 nanometres in diameter and up to several micrometers in length. They are distributed over the surface of the cell, and resemble fine hairs when seen under the electron microscope. Fimbriae are believed to be involved in attachment to solid surfaces or to other cells, and are essential for the virulence of some bacterial pathogens. Pili (sing. pilus) are cellular appendages, slightly larger than fimbriae, that can transfer genetic material between bacterial cells in a process called conjugation where they are called conjugation pili or "sex pili" (see bacterial genetics, below). They can also generate movement where they are called type IV pili (see movement, below).
What is the diameter of fimbriae?
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Answer:
2–10 nanometres