In this task, you're given a question, along with a context passage which has extra information available on certain terms mentioned in it, i.e., the proper nouns in the passage. Your job is to determine whether information from more than one term is needed to answer the question. Indicate your choice as 'a' for Yes or 'b' for No.

Input: Consider Input: Question: How many years after Thorgerson designed the cover with the man on fire for Pink Floyd did he pass away? Passage:Storm Thorgerson, who had done the majority of album covers for Pink Floyd, did the Echoes art which features recursive windows in an infinite regression as a nod to his own cover for 1969's Ummagumma, and the objects on each landscape refer to the Pink Floyd discography. For instance, there's the man on fire from Wish You Were Here, another wearing the Delicate Sound of Thunder lightbulb suit, dolls of the Atom Heart Mother cow and the Animals pig, a bike and both a brick wall and the hammers from The Wall. Eventually Thorgerson opted to make two images, with another used for the back cover. To create the idea on a photograph, various walls - which had varied measurements and angles to ensure that "nothing seemed to fit other than by eye through the lens." - were built and put in a country landscape in Sussex. Actors, props and fittings were set in and between those walls. The original design was one of two sketches submitted for Dream Theater's 1997 album Falling into Infinity, with the original being framed and hanging in the home of former Dream Theater drummer Mike Portnoy and is pointed out by Portnoy in his Hudson Music instructional drum DVD In Constant Motion.

Output: a

Input: Consider Input: Question: Who was the writer of Richard III? 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.

Output: b

Input: Consider Input: Question: What is the surface area of the body of water that the Royal Navy secured the approaches to after the outbreak of the First World War? Passage:After the outbreak of the First World War, a priority for the Royal Navy was to secure the approaches to the English Channel, to prevent elements of the German High Seas Fleet from breaking out into the Atlantic, or from interfering with British maritime trade and convoys to the continent. Most of the major fleet units of the Grand Fleet had dispersed to the navy's anchorage at Scapa Flow or to other North Eastern ports to monitor the northern route from the North Sea into the Atlantic. Consequently, a number of patrol flotillas were organised along the south and east coasts of England, with commands established at several of the major ports in the region. The Dover Patrol was based at Dover, consisting mostly of destroyers, while a number of pre-dreadnoughts and cruisers were based at Portland Harbour. A large number of destroyers, flotilla leaders and light cruisers were centred at Harwich, under the command of Commodore Reginald Tyrwhitt.
Output: b