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 Input: Question: Which French naval officer who commanded raids from Isle de France against British merchant ships joined the French navy first? Passage:During the Napoleonic wars, Île de France became a base from which the French navy, including squadrons under Rear Admiral Linois or Commodore Jacques Hamelin, and corsairs such as Robert Surcouf, organised raids on British merchant ships. The raids (see Battle of Pulo Aura and Mauritius campaign of 1809–1811) continued until 1810 when the British sent a strong expedition to capture the island. The first British attempt, in August 1810, to attack Grand Port resulted in a French victory, one celebrated on the Arc de Triomphe in Paris. A subsequent and much larger attack launched in December of the same year from Rodrigues, which had been captured a year earlier, was successful. The British landed in large numbers in the north of the island and rapidly overpowered the French, who capitulated (see Invasion of Isle de France). In the Treaty of Paris (1814), the French ceded Île de France together with its territories including Rodrigues and Seychelles to Great Britain. The island then reverted to its former name, 'Mauritius'.

Example Output: b

Example Input: Question: Do dragons appear in Greek Mythology outside of the chimera? Passage:The chimera of Greek mythology appeared in Marvel Comics. It is depicted as a fire-breathing monster with the heads of a lion and a goat next to each other, the front legs of a lion, the wings of a dragon, the hindquarters of a goat, and a snake-headed tail, while also possessing the power of speech. Its history of being the offspring of Echidna and being slain by Bellerophon is still mentioned. At some point, the Chimera was restored to life by Hera to guard the caverns underneath New Olympus. It was accompanied in this job by a Cyclops and some Skeleton Warriors. The Chimera encountered the Agents of Atlas. When it didn't see that they were Olympians, Chimera breathed fire at them, sparking a fight between the heroes and the minions of Hera. Gorilla-Man forced the chimera to set its second head ablaze, causing it to flail around until it was knocked unconscious.

Example Output: a

Example Input: Question: Which of the two operas at which Schunk appeared in 1981 is older? Passage:From 1979 onwards, he worked as a freelance singer, performing internationally. He appeared at both the Hamburg State Opera and the Vienna State Opera in 1981 as the Emperor in Die Frau ohne Schatten by Richard Strauss. In 1983, he appeared as Max in Weber's Der Freischütz at the Bregenz Festival. The same year, he made his U.S. debut as Erik at the Lyric Opera of Chicago. In 1984 he took part in the Hamburg State Opera's tour of Japan. In 1986 he appeared as Florestan in Beethoven's Fidelio at the Metropolitan Opera, opposite Hildegard Behrens in the title role, returning in 1989 as Siegmund and in 1990 as the Emperor, a role which he had also performed for his 1987 debut at the Royal Opera House. In 1996, he appeared as Loge in Wagner's Das Rheingold at the Opéra de Marseille. In addition to his opera activities, Schunk has also performed successfully in concerts. He recorded the tenor solo in Beethoven's Ninth Symphony in 1986, conducted by Georg Solti with the Chicago Symphony Orchestra & Chorus, alongside Jessye Norman, Reinhild Runkel and Hans Sotin.

Example Output:
b