In this task, you're given a question, along with a context passage. The passage will not have a direct answer to the question, but can include some information and a clue for the answer. Assuming you can only obtain information about one entity in the passage, your job is to determine whether information from the passage can be used to answer the question. Indicate your choice as `a` for Yes or `b` for No.
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Question: Question: How old was the Duke of Saxony when he appointed Adolf I to hold Holstein and Stormarn? Passage:He was appointed to hold as fiefs Holstein and Stormarn, including Hamburg, by Lothair, Duke of Saxony, in 1111. By this appointment Adolf became the leader of the defence of Germany against the Wagri. Allied with Henry, the prince of the Obotrites, he repeatedly waged war on Wagria and the Rugians. After Henry's death (1127), Adolf remained allied with his sons Canute and Sventepolk, but they were soon dead and Lothair, by then King of Germany, had made Canute Lavard, a Danish prince, Duke of Schleswig. Feeling his authority threatened by the Danish upstart, Adolf attacked his castle of Albergs, captured the garrison, and destroyed its defences. He left his counties intact to his second son, Adolf II, since his eldest, Hartung, had been killed in the Second Battle of Chlumec in 1126.


Answer: a


Question: Question: What was the first article that Khariton Chebotaryov wrote for the Moskovskie Vedomosti? Passage:Khariton Chebotaryov was born in Vologda into a poor family. In 1755, he entered a gymnasium under the Moscow University, becoming a university student six years later. Upon his graduation from the university in 1764, Chebotaryov was soon hired by his alma mater as a translator from Latin and German. In 1767, he was transferred to the gymnasium as a teacher of history and geography. In 1773, Khariton Chebotaryov was entrusted with teaching Russian literature, simultaneously doing translations from Latin, German, and French with his students. In 1775, he was appointed deputy librarian (суб-библиотекарь) of the university library (only a professor could hold this post) and editor-in-chief of the Moskovskie Vedomosti for the next three years. In 1776, Khariton Chebotaryov became an extraordinary professor at the Russian Literature Department, simultaneously remaining a philosophy and world history teacher at the gymnasium. Upon the death of Professor Johann Gottfried Reichel, Chebotaryov delivered lectures on European history and Russian literature at the gymnasium. In 1778, Khariton Chebotaryov was made an ordinary professor and appointed librarian and censor at the university theater. In 1778-1783, he was a secretary of the academic council (университетская конференция), inspector of the university gymnasium and normal school. In 1782, Khariton Chebotaryov was promoted to the rank of a collegiate assessor and then court councilor (1786). At the behest of the Empress, he and Anton Barsov were engaged in copying out notes from Russian chronicles, located at synodal and patriarchal libraries and Moscow State Archive. These notes were later presented to Catherine the Great and then served as a source for her Notes on Russian History. In consideration of his efforts, Khariton Chebotaryov was rewarded with 500 silver rubles. After the transformation of the university charter, Chebotaryov was elected its rector (being in the rank of collegiate councilor) and awarded with the Order of Saint Anna (2nd Class). Upon his resignation from this post, Chebotaryov was appointed a permanent representative of the university board, remaining as such until his death. In 1809, Khariton Chebotaryov was promoted to the rank of state councilor. During the Patriotic War of 1812, he lost his precious library and personal archives, which would come to him as a shock and greatly undermine his health. As a result, Chebotaryov suffered a stroke and died on July 26, 1815. He was interred at the Vagankovo Cemetery in Moscow. 


Answer: a


Question: Question: Of the two massacres that took place in 1976, who was the PLO targeting? Passage:By the mid-1970s, Arafat and his Fatah movement found themselves in a tenuous position. Arafat increasingly called for diplomacy, perhaps best symbolized by his Ten Point Program and his support for a UN Security Council resolution proposed in 1976 calling for a two-state settlement on the pre-1967 borders. But the Rejectionist Front denounced the calls for diplomacy, and a diplomatic solution was vetoed by the United States. In 1975, the increasing tensions between Palestinian militants and Christian militias exploded into the Lebanese Civil War, involving all factions. On 20 January 1976, the PLO took part in the Damour massacre in retaliation to the Karantina massacre. The PLO and Lebanese National Movement attacked the Christian town of Damour, killing 684 civilians and forcing the remainder of the town's population to flee. In 1976 Syria joined the war by invading Lebanon, beginning the 29‑year Syrian occupation of Lebanon, and in 1978 Israel invaded South Lebanon in response to the Coastal Road Massacre, executed by Palestinian militants based in Lebanon.


Answer:
b