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: Consider Input: Question: Which producer who worked on Daylight Crossing is the oldest? Passage:Charley and Hattie collaborated with Jeff Trott (Sheryl Crow, Aimee Mann), Mike Elizondo (Dr. Dre, Fiona Apple), and Steve Booker (Duffy) on material that would become their album Daylight Crossing. Two years later they returned to the UK, where they worked with Universal Records sister company Mercury Records for the album's release. Daylight Crossing was produced by Steve Lipson and Youth, recorded at Sarm Hook End, Abbey Road and Olympic Studios. The album featured musicians Simon Tong and Simon Jones from the band The Verve and Steve Gadd and Pino Palladino. Daylight Crossing was released in June 2006 and became the 'Record of the Week' and 'Album of the Week' at BBC Radio 2, reaching No. 2 on UK's TV music video airplay chart. iTunes chose Daylight Crossing as 'Album of the Week' and singled out the song "Torches" as its 'Single of the Week' during its release week. The Webb Sisters performed on The Sharon Osbourne Show and toured in support of Jamie Cullum (for whom their brother Brad has played drums), Jason Mraz, James Morrison and Kubb, alongside band Leya and Joe Echo. Their song "Still The Only One" was played on the TV show Cane on CBS.


Output: b


Input: Consider Input: Question: Did any Giants players play in the 1984 All-Star game? Passage:The 2007 Major League Baseball All-Star Game was the 78th midseason exhibition between the all-stars of the American League (AL) and the National League (NL), the two leagues comprising Major League Baseball. The game was held on July 10, 2007, at AT&T Park, the home of the NL's San Francisco Giants. It marked the third time that the Giants hosted the All Star Game since moving to San Francisco for the 1958 season. The 1961 and 1984 All Star Games were played at the Giants former home Candlestick Park, and the fourth overall in the Bay Area, with the Giants bay area rivals the Oakland Athletics hosting once back in 1987, and the second straight held in an NL ballpark.


Output: b


Input: Consider Input: Question: Where is the institution where Chandrasekhar served as director in 2014 headquartered? Passage:Vadapalli Chandrasekhar, born on 6 November 1958 in Kolkata, in the Indian state of West Bengal, graduated in chemistry in 1975 and completed his post graduate studies in 1977 at Osmania University before enrolling for doctoral studies at Indian Institute of Science under the guidance of S. S. Krishnamurthy. After securing a PhD in 1982, he moved to the University of Massachusetts, Amherst in 1983 and completed his post-doctoral studies at the laboratory of Robert R. Holmes in 1986. He returned to India the same year and started his career as a senior research officer at Indian Petrochemicals Corporation Limited but his stay there lasted only one year. In 1987, he joined IIT Kanpur as an assistant professor to commence a service which would extend till 2012; during this period, he held various positions such as that of an associate professor (1991–1995), professor (1995–), head of the department of chemistry (2008–2010) and dean of faculty affairs (2011–2012). His next move was to Tata Institute of Fundamental Research at their Hyderabad research station as a senior professor and dean and in 2014, he shifted to National Institute of Science Education and Research where he serves as the director. He has also served as a visiting faculty or fellow at various institutions such as University of Calgary, University of Göttingen, University of Tsukuba, and University of Würzburg.



Output: b