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: What was the major economic output of the town Uki was born in? Passage:Uki was born in Matsudo on October 4, 1971. After graduating from Tokyo Gakugei University, he joined Japan Football League club Tokyo Gas in 1994. He became a regular player as center back from first season. In 1997, he moved to J1 League club JEF United Ichihara. However he could hardly play in the match. In 1998, he returned to Tokyo Gas and the club won the champions in 1998 season. In 1999, he moved to newly was promoted to J2 League club, Omiya Ardija. Although he played as center back until July 1999, he was converted to defensive midfielder in August. In 2001, he moved to J2 club Montedio Yamagata. He played as regular defensive midfielder. In 2002, he moved to J2 club Oita Trinita. He played as regular defensive midfielder and the club won the champions in 2002 and was promoted to J1 from 2003. However he could hardly play in the match in 2003. In 2004, he moved to J2 club Shonan Bellmare. He played many matches as defensive midfielder and center back. In August 2005, he moved to J2 club Yokohama FC and played many matches as center back. In 2006, he moved to Japan Football League club FC Kariya. Although he played many matches as regular player, the club results were bad and manager Nariyasu Yasuhara was sacked in July 2007. Uki retired and became a new manager as Yasuhara successor.


b