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.
Example: Question: When did the operation during which the 704th dropped supplies to allied troops near Nijmegen begin? Passage: The group was occasionally diverted from strategic missions to carry out air support and interdiction missions. It supported Operation Overlord, the invasion of Normandy by attacking transportation targets, including bridges, along with airfields and strong points in France. On D Day, the squadron and the rest of the 446th Group led the first heavy bomber mission of the day. The 446th aided ground forces at Caen and Saint-Lô during July by hitting bridges, gun batteries, and enemy troops. During Operation Market Garden, the attempt to seize a bridgehead across the Rhine in the Netherlands, the 704th dropped supplies to allied troops near Nijmegen. It struck lines of communications during the Battle of the Bulge. During Operation Varsity in March 1945, it supplied ground and airborne troops near Wesel. The squadron flew its last combat mission on 25 April 1945 against Salzburg, Austria. The group had flown 273 missions and had lost 58 aircraft during the war,
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Example solution: a
Example explanation: The passage describes the 704th's actions during Operation Market Garden so only information about the operation is needed.

Problem: Question: How many years did the Third Anglo-Afghan War last? Passage:Fawcus served during World War One and was promoted to the rank of lieutenant colonel in March 1915. He was made a member of the Order of St Michael and St George in the 1915 Birthday Honours. He was made a temporary colonel in April 1917. He awarded the Croix de guerre by France in June 1917. Throughout the course of the war, Fawcus was mentioned in dispatches six times. Following the war, he was promoted to the rank of brevet colonel in June 1919, and in the same year he served in the Third Anglo-Afghan War. He served as an assistant director-general at the War Office from June 1922–July 1926. He was appointed as the honorary physician to George V in January 1923, following the retirement of Sir Alfred Blenkinsop. He was promoted to the full rank of colonel in June 1926, with appointment in the same month as a deputy director-general at the War Office. He was promoted to the rank of major-general in October 1926. He was knighted in the 1928 Birthday Honours. He was appointed as the director-general of Army Medical Services in September 1929, at which point he was promoted to the rank of lieutenant-general. He was made a member of the Order of the Bath in the 1931 New Year Honours. Fawcus was presented with an honorary degree in civil law by Durham University in 1930. He served as the director-general of Army Medical Services until his retirement from active service in March 1934. Following his retirement he was replaced as the personal physician for George V by J. W. L. Scott. While serving as director-general, he won the General's Cup in golf at Sandwich in 1931.


Solution: b