Definition: 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.
Input: Question: How many years had Percy Foreman been a lawyer when he managed to get the conviction of Civello reversed on appeal? Passage:One year after Civello ascended to power, he made a fateful trip that would shed a glaring light on him and La Cosa Nostra in Dallas for years to come. Following the assassination of Albert Anastasia, chief of one of the Five Families of New York, a meeting of mob leaders from cities throughout the United States and Canada was called in order to install Carlo Gambino as Anastasia's successor. A suspiciously large number of black Cadillacs and Lincolns in and around Apalachin, New York, the tiny Upstate New York town where the mob conference was gathering, alerted local law enforcement to investigate. Over 60 underworld bosses were detained and indicted at the Apalachin Meeting, including Civello. Noted federal judge Irving R. Kaufman presided over the 1960 trial in which Civello was sentenced to five years for a conspiracy charge stemming from the Apalachin meeting. Civello retained Houston defense attorney Percy Foreman, and the conviction was reversed on appeal in 1961.


b