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: What age was Hans Asperger when he invented the term Autistic psychopathy? Passage:Michael Fitzgerald, a professor of child and adolescent psychiatry, published a cornucopia of pathographies of outstanding historical personalities, mostly stating that they had Asperger syndrome, which is on the autism spectrum. In his 2004 published anthology Autism and creativity, he classified Hitler as an "autistic psychopath". Autistic psychopathy is a term that the Austrian physician Hans Asperger had coined in 1944 in order to label the clinical picture that was later named after him: Asperger syndrome, which has nothing to do with psychopathy in the sense of an antisocial personality disorder. Fitzgerald appraised many of Hitler's publicly known traits as autistic, particularly his various obsessions, his lifeless gaze, his social awkwardness, his lack of personal friendships, and his tendency toward monologue-like speeches, which, according to Fitzgerald, resulted from an inability to have real conversations.

Example Output: b

Example Input: Question: Who is in charge of the city Couceiro arrived in in 1889? Passage:Paiva Couceiro arrived in Luanda, Angola on September 1, 1889, and was immediately appointed commander of the Irregular Cavalry Squadron in the village of Humpata (which was originally created by Artur de Paiva to combat bands of guerrillas along the plain of Mocamedes). He did not remain at this outpost for long; apparently he was unsatisfied with his subordinates, their methods and inferior level of discipline, but was able to utilize them in a campaign to retrieve missing cattle, instead of hiring local Boer mercenaries, which had been the custom. By January he was in the village of Belmonte, in Bie, on a mission that would take him along the Cuando River, to Cuito and then to the Lialui along the Zambezi River (a trek of thousands of kilometers across savannah), in order to negotiate with Lewanika, chief of the Barotze tribe. The growth of the Portuguese occupation force in the Angolan interior was part of the administration's attempted to implement their Pink Map to explore and expand their serfdom over the peoples of the central-African interior. After some resistance, the colonial administration began a military campaign to pacify groups that had resisted initial token gestures of friendship and gifts, a process that Paiva Couceiro participated in energetically. For the chief's recognition of Portuguese sovereignty over his territories, Paiva Couceiro brought with him a colonels tunic and sword, textiles, gold, velvet, boxes of Porto wine and arms, which were to be delivered in 300 crates when the Governor of Angola canceled the project.

Example Output: a

Example Input: Question: Did Nile Rodgers produce other songs than the first single "Moja Mi Corazon"? Passage:Azabache (Spanish: "jet (lignite)") is the third studio album by Spanish singer Marta Sanchez. Was released in 1997. On this album more producers were involved (Andres Levin, Nile Rodgers, Camus Celli, Robyn Smith and Stephen Budd) along with longtime musical partner Christian De Walden and they created a rock oriented album, instead of the pop music Marta recorded for her first and second album. Critical reaction was mostly positive. The first single "Moja Mi Corazon", features guitar player Slash and was produced by Nile Rodgers. The album yielded five singles: "Negro Azabache", "Algo Tienes", "Ya Ves" and "Amor Perdido". While promoting this album, Marta recorded along with opera singer Andrea Bocelli the song "Vivo por Ella", which became a worldwide smash hit and was later included on the international pressings of "Azabache". The majority of the tracks were recorded in English (as usual for any Marta Sanchez album) and were released under the title One Step Closer.

Example Output:
b