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.

Ex 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: ), 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.

Ex Output:
b

Ex Input:
Question: Which location sits higher above sea level, the modern capital of Armenia or the location where the fortress was found in 782? Passage:The name Armenia was given to the country by the surrounding states, and it is traditionally derived from Armenak or Aram (the great-grandson of Haik's great-grandson, and another leader who is, according to Armenian tradition, the ancestor of all Armenians). In the Bronze Age, several states flourished in the area of Greater Armenia, including the Hittite Empire (at the height of its power), Mitanni (South-Western historical Armenia), and Hayasa-Azzi (16001200 BC). Soon after the Hayasa-Azzi were the Nairi (14001000 BC) and the Kingdom of Urartu (1000600 BC), who successively established their sovereignty over the Armenian Highland. Each of the aforementioned nations and tribes participated in the ethnogenesis of the Armenian people. Yerevan, the modern capital of Armenia, dates back to the 8th century BC, with the founding of the fortress of Erebuni in 782 BC by King Argishti I at the western extreme of the Ararat plain. Erebuni has been described as "designed as a great administrative and religious centre, a fully royal capital."

Ex Output:
a

Ex Input:
Question: What country hosted the Olympics where Bartlett's team won a silver medal? Passage:Don Bartlett played lead for Kevin Martin beginning in 1991. It was in 1991 that the team won the Brier that year. The team would win the 1997 Brier. Internationally, Bartlett has been to two World Curling Championships and two Winter Olympics. At the 1991 Worlds, Martin, Walchuk, third Kevin Park and second Dan Petryk won a silver medal. At the 1992 Winter Olympics (demonstration), the team finished fourth place. In 1997, the team now consisting of Don Walchuk at third and Rudy Ramcharan at second placed fourth. At the 2002 Winter Olympics now with Carter Rycroft at second, the team won a silver medal. With Martin, Bartlett has been to seven Briers and has won two Canada Cups. Before Martin, Barlett played with Pat Ryan. He went to the 1985 Brier as his alternate player.

Ex Output:
b