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.

Example Input: Question: Which North American city hall building that used Superblocks was completed first? Passage:Superblocks are also used when functional units such as rail yards or shipyards, inherited from the 19th and early 20th centuries, are too big to fit in an average city block. A contemporary function which reflects ancient practices that also requires larger than typical blocks is the sports stadium or arena. Just as the Colosseum in ancient Rome, sports complexes require superblocks. The Providence Park stadium in Portland, for example, takes up four normal city blocks as does the equally large Greensboro Coliseum in North Carolina. Other contemporary institutions, establishments or functions that use superblocks are: city halls like Government Center, Boston and Toronto City Hall; regional general hospitals or specialized medical centres; convention and exhibition centers, such as Exhibition Place in Toronto and the Boston Convention and Exhibition Center; and downtown enclosed Shopping Malls such as Eaton Centre in Toronto, echoing the large gallerias of the 19th century. Cultural complexes, such as the Lincoln Center in New York City, often occupy a superblock achieved through the consolidation of regular city blocks. A recent superblock user is the merchandise distribution centre, which can range in area from one to ten city blocks.

Example Output: a

Example Input: Question: Do more than 10 college teams compete in the conference that Northern Illinois is a member of? Passage:The 2014 Northern Illinois Huskies football team represented Northern Illinois University in the 2014 NCAA Division I FBS football season. The Huskies competed in the West Division of the Mid-American Conference. They were led by second-year head coach Rod Carey. They played their home games at Huskie Stadium. The Huskies' regular season loss to Central Michigan snapped a 26-game home winning streak dating back to the 2009 season. They finished the season 11–3, 7–1 in MAC play to win a share of the MAC West Division Title with Toledo. Due to their head-to-head win over Toledo, the Huskies represented the West Division in the MAC Championship Game where they defeated Bowling Green to be crowned MAC Champions. They were invited to the Boca Raton Bowl where they lost to Conference USA Champion Marshall.

Example Output: b

Example Input: Question: How many copies were sold of the album by Avril Lavigne that Chantal co-wrote six songs for? Passage:Canadian singer-songwriter, producer and pianist Chantal Kreviazuk has written, produced and performed on albums and tracks for a wide range recording artists, spanning from adult contemporary, pop, rock, to indie and hip-hop music. Initially, she began writing her own pop songs, especially after a 1994 motorcycle accident in Italy left her immobile for several months, and was signed by Sony Canada, where she released her debut album in June 1997. Chantal later released another album in 1999, before being featured in a range of soundtracks to films and TV series. Chantal began writing for other artists in 2001, where she co-wrote the song "Always and Forever" for Eleanor McCain. However, it was only in 2004 that Chantal started writing for more artists and received recognition as a songwriter. In the summer of 2003, Chantal met Canadian singer-songwriter Avril Lavigne, they formed a relationship of mutual respect and sisterhood, and eventually became songwriting partners. They co-wrote six songs for Lavigne's sophomore album, Under My Skin (2004): "Slipped Away," "Forgotten," "Together," "How Does It Feel," "He Wasn't" and "Who Knows." Kreviazuk described "He Wasn't" as "a super-fun, punk, screw-you-to-boys song," while "Forgotten" is a driving rock song inspired by similarly vibed music Lavigne was consumed with at the time. Also in 2004, Chantal co-wrote "Rich Girl", for Gwen Stefani's solo debut album, "Love. Angel. Music. Baby.", along with Dr. Dre, Jerry Bock, Mark Batson, Kara DioGuardi, Mike Elizondo, Sheldon Harnick and Eve. The song became a chart success, reaching the top-ten in over fifteen countries. Chantal also wrote for Kelly Clarkson's breakthrough album "Breakaway" in the end of 2004, sharing writing credits for the tracks "Where is Your Heart" and "Walk Away". In 2005, Chantal's co-writing song "He Wasn't" was released as Lavigne's final single from "Under My Skin", receiving a moderate impact on the charts and reaching only the top-forty in some countries. While in 2006, Clarkson's "Walk Away" was released as "Breakaway"'s final single, reaching the top-twenty in some countries.

Example Output:
b