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.

Input: Consider Input: Question: How many years had the Northern Ireland Trophy been established when Liang Wenbo reached at least the second round of qualifying in every ranking event? Passage:During the 2006/07 season, Liang reached at least the second round of qualifying in every ranking event. At the Northern Ireland Trophy, he beat Robert Stephen 5–0 before falling to David Gilbert 0–5 in qualifying. However, at the Grand Prix, Liang came top of his qualifying group, above more experienced players such as Gerard Greene and Barry Pinches. He finished fourth in his group at the round-robin stage, and although he did not progress to the next round, he did beat former world champion and world number one Stephen Hendry 3–0. At the UK Championship, he lost in the second round of qualifying to Jamie Burnett 7–9. In the following ranking event, the Malta Cup, he lost to Joe Jogia 3–5, again in the second round of qualifying. He qualified for the Welsh Open, his third ranking tournament, by beating Dene O'Kane, Joe Jogia and Mark Davis. He met Nigel Bond again in the last 48, this time losing only 3–5.


Output: b


Input: Consider Input: Question: What country did Airey fight for in World War I? Passage:Airey was born in Oldham, Lancashire on 25 August 1894. He joined Robert Watson-Watt in 1924, and was an original member of the radar team, responsible for masts and support equipment. He was Senior Technical Officer at Telecommunications Research Establishment. Alongside Arnold Wilkins, Airey is credited with having discovered Bawdsey Manor, Ordfordnessas a site for the Air Ministry department that was significant in the history of radar. In his book "Three Steps to Victory" Robert Watson-Watt proclaims Joe Airey's greatest constructional achievement as the installation of a mast atop the Great Pyramid at Cheops. During World War I, Airey was a member of the Dunsterforce in the Persia and the Middle East. By the time of his retirement, he was Station Engineer at the Royal Radar Establishment. He was appointed a Member of the Order of the British Empire (MBE) for his services by King George VI in his Birthday Honours on 14 June 1945. Airey died in Poole Dorset on 10 February 1976.


Output: b


Input: Consider Input: Question: What is the length of the body of water that the Dutch ships avoided at the narrowest point? Passage:To avoid conflict with the English (with whom, due to the Third Anglo-Dutch War, the Dutch were at war), rather than passing through the English Channel, the ship was directed northwards where the plan would be to sail around the north of the British Isles (known as "going north about", which was commonly practised by Dutch East India ships at that time), before heading southwards again. Due to the extreme weather conditions in its journey northwards, the ship lost its masts and rudder, and southerly winds prevented the ship from being able to pass through either the Pentland Firth or the Fair Isle Channel, so the ship was (probably with considerable difficulty) taken into Ronas Voe in the north-west of Northmavine, Mainland, Shetland to shelter until the weather improved, and to allow the ship to be repaired. The voe (Shetland dialect for an inlet or fjord forms a crescent shape around Ronas Hill, which would have allowed the ship to lie sheltered regardless of the direction of the wind. A combination of prevailing southerly winds, and, presumably, a scarcity of suitable wood available in Shetland at that time to replace its masts prevented the ship from continuing its journey, and as such it remained in Ronas Voe until March 1674.



Output: b