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: How tall is Mount Weeks? Passage:According to the United States Census Bureau, the city has a total area of , of which is land and is water, comprising 1.35% of the city. Berlin is situated at the confluence of the Androscoggin and Dead rivers. The Mahoosuc Range is to the southeast. Jericho Mountain State Park, created from a city park and from private land in 2005, is west of the city center and features a reservoir created in the 1970s and a network of ATV trails. The city's highest point is Mount Weeks, at above sea level. A prominent feature in the landscape of Berlin is Mount Forist, rising over the west side of the city. Approximately half of Berlin lies within the Connecticut River watershed, and half lies in the Androscoggin River watershed.


Ex Output:
a


Ex Input:
Question: What was his first victory of the year? Passage:Race 1 was held on Saturday 10 May. Mark Winterbottom took his second race victory of the year, a surprisingly comfortable win ahead of the HRT pair of Mark Skaife and Garth Tander. Tander was pushed hard by Steven Richards and Craig Lowndes. A collision at race start saw Jason Bright touch Greg Murphy who in turn made contact with Michael Caruso, sending Bright and Caruso out of control towards turn 7, where crossing the track Caruso struck Shane van Gisbergen. The incident triggered a safety car. Jamie Whincup and Will Davison charged through to seventh and eight positions from poor qualifying places. James Courtney was fighting amongst that group but fading rear tyres led Courtney to attempt defensive moves that raised the ire of race control, leading to first the bad sportsmanship flag, then a black flag drive through penalty which dropped him down field.


Ex Output:
a


Ex Input:
Question: Is Geoffrey Chung older than his brother who is also a guitarist in his band? Passage:Chung was born in 1950 in Kingston, Jamaica. He worked as a session keyboard player and guitarist in the 1960s, as a member of The Mighty Mystics and the Now Generation Band, both of which also included his brother, guitarist Mikey Chung, and Lee "Scratch" Perry's band The Upsetters, among others. He began working as a producer in the 1970s, initially with Sharon Forrester on her debut album, and set up his Edge productions company in 1974. His productions included work by The Abyssinians, The Heptones, and Marcia Griffiths. He also worked with Ras Michael's Sons of Negus band, on the 1975 album Rastafari Dub, playing synthesizer, organ and piano, and worked regularly with singer Pablo Moses, both as keyboard player and producer, including his first and best-known recording "I Man a Grasshopper". Chung also produced the recordings that would be released as the first two albums from Ijahman Levi. In the early 1980s he became resident engineer at the Dynamic studios, where he mixed several albums by Peter Tosh, and he co-produced early recordings by Frankie Paul. In the late 1980s he relocated to Miami, where he established his own recording studio. In 1991 he produced and engineered Maxi Priest's Best of Me album. Geoffrey died in November 1995 of liver failure. Geoffrey's work continues to be released since his death such as the 2003 release of Everton Blender's King Man album where he played clavinet and acted as engineer.


Ex Output:

b