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.

Let me give you an 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-Lo 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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The answer to this example can be: a
Here is why: The passage describes the 704th's actions during Operation Market Garden so only information about the operation is needed.

OK. solve this:
Question: Did Alberto Randegger and Richard Mansfield have any collaborative works together? Passage:After leaving the Academy, German continued to teach at Wimbledon School and to play the violin in orchestras at various London theatres, including the Savoy. In 1888, an introduction by conductor Alberto Randegger to theatre manager Richard Mansfield led to German's appointment as conductor and musical director at the Globe Theatre in London. There he improved the orchestra and began providing incidental music for the theatre's lavish productions, starting with Richard III in 1889. This music was well received (The Times called for a concert suite to be arranged), and the overture soon became popular in concert halls. This eventually led to other incidental music commissions that gained success. In 1892, German composed music for a production of Henry Irving's version of Henry VIII at the Lyceum Theatre, London, where he incorporated elements of traditional old English dance. Within a year, sheet music of the dance numbers from the play's score had sold 30,000 copies. German was by then in great demand to write music for plays. His commissions included Henry Arthur Jones's The Tempter in 1893, Johnston Forbes-Robertson's Romeo and Juliet at the Lyceum in 1895, Herbert Beerbohm Tree's productions of As You Like It (1896) and Much Ado about Nothing (1898), and Anthony Hope's English Nell (later known as Nell Gwynn) in 1900, starring Marie Tempest.

Answer:
a