Given the task definition, example input & output, solve the new input case.
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.
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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Output: b
The passage describes the 704th's actions during Operation Market Garden so only information about the operation is needed.

New input case for you: Question: Which of the films Thornton appeared in in the 1960s and the 1970s had the largest box office gross? Passage:From 1966 to 1968, he starred in the BBC radio comedy The Embassy Lark, a spin-off of The Navy Lark. He appeared in at least one episode of The Navy Lark as CPO Nathanial Pertwee, filling in for Jon Pertwee who was indisposed. He also appeared in at least one episode of The Navy Lark as his character from The Embassy Lark. In 1969, he starred in The Big Business Lark which ran for one season of thirteen episodes. This was not strictly a spin-off from The Navy Lark, other than being another "Lark" written by Laurie Wyman. He continued to appear in films, mostly comedies, during the 1960s and 1970s, including Carry On Screaming!, alongside Steptoe and Son star Harry H. Corbett, The Early Bird, The Big Job, The Bed Sitting Room, Up the Chastity Belt, Some Will, Some Won't, "A Funny Thing Happened on the Way to the Forum" and No Sex Please, We're British, as well as television sitcom spin-offs. He appeared in The Private Life of Sherlock Holmes (1970) as the one-armed doorman for the Diogenes Club. In 1974, he made a rare dramatic appearance as Prince Albert in the second episode of Fall of Eagles.

Output:
a