In this task, you're given a question, along with a context passage which has extra information available on certain terms mentioned in it, i.e., the proper nouns in the passage. Your job is to determine whether information from more than one term is needed to answer the question. Indicate your choice as `a` for Yes or `b` for No.

Ex Input:
Question: Is the English hard rock band that Wolfmother covered at the UK Music Hall of Fame still active? Passage:After its success in Australia, Wolfmother was later released internationally in early 2006 – on 24 April in the UK, where it reached number 25 on the UK Albums Chart, and on 2 May in the US, where it reached number 22 on the Billboard 200. A number of singles were released from the album, including "Woman" which reached number 34 in Australia, number 31 on the UK Singles Chart, and number 7 on the US Billboard Mainstream Rock chart. The song later won the Grammy Award for Best Hard Rock Performance at the 49th Annual Grammy Awards, the nomination for which Heskett had previously described as "an honour". The final single from the album, "Joker & the Thief", later reached the top ten in Australia. The subsequent worldwide tour included appearances at festivals such as Fuji Rock in Tokyo, Japan, the inaugural Virgin Festival, and Reading and Leeds Festivals in the UK. On 14 November 2006, the band performed a cover version of "Communication Breakdown" by English hard rock band Led Zeppelin as a tribute to the band for their induction into the UK Music Hall of Fame.


Ex Output:
b


Ex Input:
Question: Where is the organization where Yelick served as director from 2008-2012 headquartered?  Passage:Katherine Yelick received her SB, SM, and PhD in computer science from the Massachusetts Institute of Technology. She joined the faculty at the University of California, Berkeley in 1991. She joined the research staff at Lawrence Berkeley National Laboratory in 1996 as a joint-appointment faculty research scientist, and has been the Associate Laboratory Director for Computing Sciences since 2010. She is known for her work in partitioned global address space programming languages, including co-inventing the Unified Parallel C (UPC) and Titanium languages. She also led the Sparsity project, the first automatically tuned library for sparse matrix kernels, and she co-led the development of the Optimized Sparse Kernel Interface (OSKI). From 2008 to 2012 she was the director of the National Energy Research Scientific Computing Center. From 2009 to 2015 she was a member of the California Council on Science and Technology.


Ex Output:
b


Ex Input:
Question: Who was the head coach for the Cowboys when the 49ers lost the first NFC Championship Game against them? Passage:Watters played for ten seasons in the NFL with San Francisco, Philadelphia, and Seattle. He was selected by San Francisco in the second round of the 1991 NFL Draft, but sat out the entire 1991 season with injuries. He started at running back for the 49ers during the next three seasons and San Francisco's offense led the NFL in scoring and yardage each year. The 49ers reached the NFC Championship Game in 1992 and 1993, falling both times to the Dallas Cowboys, before finally vanquishing Dallas in the 1994 NFC title game on their way to a Super Bowl championship. In a January 1994 divisional playoff, Watters set an NFL postseason record with five rushing touchdowns in the game, as the 49ers trounced the New York Giants 44-3. In Super Bowl XXIX the following season, Watters scored three touchdowns in San Francisco's 49-26 victory over the San Diego Chargers, tying a Super Bowl mark shared by fellow 49ers Roger Craig and Jerry Rice, and later matched by Terrell Davis of the Denver Broncos.


Ex Output:

b