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: In what year did Joseph's son die? Passage:In the biblical account, Joseph's other son is Manasseh, and Joseph himself is one of the two children of Rachel and Jacob, the other being Benjamin. Biblical scholars regard it as obvious, from their geographic overlap and their treatment in older passages, that originally Ephraim and Manasseh were considered one tribe that of Joseph. The Book of Revelation, however, accords only Ephraim the tribal name of Joseph. According to several biblical scholars, Benjamin was originally part of the suggested Ephraim-Manasseh single "Joseph" tribe, but the biblical account of Joseph as his father became lost. A number of biblical scholars suspect that the distinction of the Joseph tribes (including Benjamin) is that they were the only Israelites which went to Egypt and returned, while the main Israelite tribes simply emerged as a subculture from the Canaanites and had remained in Canaan throughout. According to this view, the story of Jacob's visit to Laban to obtain a wife originated as a metaphor for this migration, with the property and family which were gained from Laban representing the gains of the Joseph tribes by the time they returned from Egypt; according to textual scholars, the Jahwist version of the Laban narrative only mentions the Joseph tribes, and Rachel, and does not mention the other tribal matriarchs at all.

Ex Output:
a

Ex Input:
Question: Which institution where Kavlie studied after leaving the Royal Norwegian Navy currently has the most undergraduate students enrolled? Passage:He was born in Oslo, and took the siv.ing. degree at the Norwegian Institute of Technology in 1963. He then spent a year as a conscript in the Royal Norwegian Navy, took the doctorate in ship construction at the Institute of Technology, studied at the University of California at Berkeley before entering the shipping sector. In 1972 he took the Ph.D. degree. He then returned to academia, being hired as a lecturer at the Institute of Technology. In 1976 he was promoted to professor. From 1980 he was the deputy rector of the Norwegian Institute of Technology, and from 1984 to 1990 he served as rector. Deputy rector during this period was Kjell Egil Eimhjellen. The KavlieEimhjellen team was succeeded in July 1990 by rector Karsten Jakobsen and deputy rector Emil Spjtvoll. Kavlie continued as a professor until 1991.

Ex Output:
a

Ex Input:
Question: What album was number one when Cassie's album debuted at number four? Passage:American singer Cassie Ventura, known mononymously as Cassie, has released one studio album, one mixtape, thirteen singles (including three as a featured artist) and eleven music videos. She recorded her first song, "Kiss Me", with Ryan Leslie for her mother's birthday in February 2005. Leslie then signed Ventura to his NextSelection imprint, writing and producing her first single "Me & U" that same year. The song soon went viral after made available on her MySpace page and became a club hit in Germany. In the meantime, Diddy partnered with Leslie to release Ventura's self-titled debut album Cassie in August 2006, through Bad Boy and Atlantic Records. The album debuted at number four on the US Billboard 200 and charted within the top forty in the UK Albums Chart, where it later received a Silver certification by the British Phonographic Industry. "Me & U" peaked in the top ten of several countries, including number three on the US Billboard Hot 100 and spent seven weeks atop the US Airplay chart, being certified Platinum by the Recording Industry Association of America selling over one million digital downloads. The follow-up "Long Way 2 Go" was the final single of the album and despite less successful in the US, it went on to peak within the top forty of various other countries.

Ex Output:
a