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 is gender of the student murdered in 1999 that Serial investigated in season 1? Passage:Serial is an investigative journalism podcast hosted by Sarah Koenig, narrating a nonfiction story over multiple episodes. The series was co-created and is co-produced by Koenig and Julie Snyder and developed by This American Life. Season one investigated the 1999 murder of Hae Min Lee (Hangul: 이해민), an 18-year-old student at Woodlawn High School in Baltimore. Season two focused on Sergeant Bowe Bergdahl, an American Army soldier who was held for five years by the Taliban, and then charged with desertion. Season three, which debuted in September 2018, explores cases within the Justice Center Complex in the Cleveland area. Serial ranked number one on iTunes even before its debut and remained there for several weeks. Serial won a Peabody Award in April 2015 for its innovative telling of a long-form nonfiction story. As of September 2018, episodes of seasons one and two have been downloaded over 340 million times, establishing an ongoing podcast world record.

Example Output: b

Example Input: Question: Which ship had been in service longer at the time when he was on them, the one where he still held sub-lieutenant rank or the one where David had been promoted to full lieutenant? Passage:He was assigned as a midshipman on 1 May 1929 after finishing top of his class in five subjects. In 1930 he was assigned to the battleship Marlborough, part of the Third Battle Squadron; and the following year to the battlecruiser in September 1931 on which he served with fellow midshipman, and future vice admiral, Peter Gretton. While serving on the ship, Wanklyn was promoted to acting sub-lieutenant (the equivalent of an army second lieutenant) on 1 January 1932. Soon afterwards he moved to the naval gunnery school - HMS Excellent - at Whale Island, Portsmouth to learn more about naval navigation to qualify for his second ring at the rank of lieutenant. In February 1933 he moved to HMS Dolphin and was promoted to lieutenant on 1 February 1933.

Example Output: b

Example Input: Question: How many people are on the council that the AEAC invited to attend a free lunch? Passage:The Adult Entertainment Association of Canada (abbreviated AEAC, also called the Adult Association of Canada) is a coalition of strip club owners and their agents that represents 53 of the 140 strip clubs in Ontario, Canada. Tim Lambrinos is the organization's director. The Exotic Dancers' Alliance (EDA), a collective that was founded in 1995 to bring together both former and current strippers and their supporters, sought to establish minimum employment standards for strippers in Ontario by contending with the AEAC, but the EDA ceased to exist in 2004. Also in 2004, Ottawa instituted a law against lap dancing, and the AEAC unsuccessfully attempted to have the law overturned in 2007. Starting in 2004, the AEAC and the Department of Citizenship and Immigration Canada became embroiled in a long-standing controversy about work permits for foreign workers to be hired for the purpose of striptease. In 2008, when Minister of Citizenship and Immigration Diane Finley allegedly received threats from sex industry officials in relation to her support of Bill C-17, which sought to allow immigration officers to deny temporary visas to prospective strippers if they were suspected to be sex trafficking victims, Lambrinos said that "it's not plausible" that any of the AEAC strip clubs were responsible for the threats. In 2009, the AEAC invited Toronto City Council members to attend a free lunch at a strip club in the city, and three councillors accepted the invitation. The AEAC released a statement in 2010 that the government's crackdown on sex industry worker visas had resulted in a stripper shortage, and Minister of Public Safety Vic Toews responded by saying that the strip clubs that were short on strippers because of the crackdown were engaging in human trafficking. Toews then ordered the Royal Canadian Mounted Police to investigate the relevant strip clubs in order to determine whether or not the strippers working there were illegal immigrants or sex trafficking victims, and the AEAC launched a campaign to deny these allegations.

Example Output:
a