Definition: 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: Question: Which European director was older, Cocteau or Bergman? Passage:One of the main film genres associated with the Weimar Republic cinema is German Expressionism which was inspired by the expressionist movement in art. Expressionist movies relied heavily on symbolism and artistic imagery rather than stark realism to tell their stories. Given the grim mood in post-WWI, it was not surprising that these films focused heavily on crime and horror. The film usually credited with sparking the popularity of expressionism is Robert Wiene's The Cabinet of Dr. Caligari (1920), produced by Erich Pommer. The film tells the story of a demented hypnotist who is using a sleepwalker to perform a series of murders. The film featured a dark and twisted visual style - the set was unrealistic with geometric images painted on the floor and shapes in light and shadow cast on walls, the acting was exaggerated and the costumes bizarre. These stylistic elements became trademarks of this cinematic movement. Other notable works of Expressionism are Friedrich Wilhelm Murnau's Nosferatu (1922), Carl Boese and Paul Wegener's  (1920) and Metropolis (1927) directed by Fritz Lang. The Expressionist movement began to wane during the mid-1920s, but perhaps the fact that its main creators moved to Hollywood, California, allowed this style to remain influential in world cinema for years to come, particularly in American horror films and film noir and in the works of European directors such as Jean Cocteau and Ingmar Bergman.


a