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: What was the most famous song by the person who also had covered Dixon's song? Passage:A mixture of songs that inspired his own musical development, together with some of his own compositions, allied to a backing band and orchestra (The Caledonia Soul Orchestra) and several performances (as noted in the album's liner notes) that were recorded in concerts at The Troubadour in Los Angeles, California (24–27 May 1973), the Santa Monica Civic Auditorium (29 June 1973) and The Rainbow (23–24 July 1973) in London. These performance result in what Myles Palmer of the Times reviewed as demolishing "all barriers between the soul, blues, jazz and rock genres". The songs chosen went back to his days with Them with versions of "Gloria" and "Here Comes the Night". His first solo hit "Brown Eyed Girl" was performed but not included on the album until the reissue in 2008. M. Mark called the album "an intelligent selection of songs that draws on six of Morrison's records and five of the musicians he learned from." These musicians were Bobby Bland ("Ain't Nothing You Can Do"), Ray Charles ("I Believe to My Soul"), Sam Cooke ("Bring It On Home to Me"), two songs by Sonny Boy Williamson II ("Help Me" and "Take Your Hands Out of My Pocket") and a cover of a Willie Dixon song, "I Just Want to Make Love to You", which was popularized by Muddy Waters.


Output: b


Input: Consider Input: Question: How many miles separate Bridge of Weir and Roker Park? Passage:Gallacher was born in Bridge of Weir and started his footballing career Linwood St Conval and Bridge of Weir before moving to Sunderland. He made his debut for Sunderland on 21 September 1929 against Arsenal in a 1–0 loss at Roker Park. He was part of the 1937 FA Cup Final winning side against Preston North End. In his career at Sunderland, Gallacher made 309 appearances and scored 108 goals in all competitions. He helped the "Black Cats" to win the First Division in 1935–36, scoring 20 goals in that title winning season. He then moved on to Stoke City in December 1938 just before the World War II. He only managed to play four matches for Stoke due to injury and left at the end of the 1938–39. He then played in Ireland for Coleraine and Cork United before signing for Cheltenham Town in September 1948 playing 8 games before leaving.


Output: a


Input: Consider Input: Question: Who was the Han emperor when the Xianbei killed the Xiongnu chanyu Youliu? Passage:The Xianbei (; ) were an ancient nomadic people that once resided in the eastern Eurasian steppes in what is today Mongolia, Inner Mongolia, and Northeastern China. They originated from the Donghu people who splintered into the Wuhuan and Xianbei when they were defeated by the Xiongnu at the end of the 3rd century BC. The Xianbei were largely subordinate to larger nomadic powers and the Han dynasty until they gained prominence in 87 AD by killing the Xiongnu chanyu Youliu. However unlike the Xiongnu, the Xianbei political structure lacked the organization to pose a concerted challenge to the Chinese for most of their time as a nomadic people. After suffering several defeats by the end of the Three Kingdoms period, the Xianbei migrated south and settled in close proximity to Chinese society and submitted as vassals, being granted the titles of Dukes. As the Xianbei Murong, Tuoba and Duan tribes were one of the Five Barbarians who were vassals of the Han Chinese Western Jin and Eastern Jin dynasties, they took part in the Uprising of the Five Barbarians as allies of the Han Chinese Eastern Jin against the other four barbarians, the Xiongnu, Jie, Di and Qiang. The Xianbei were at one point all defeated and conquered by the Di Former Qin empire before it fell apart at the Battle of Fei River at the hands of the Eastern Jin. The Xianbei later founded their own states and reunited northern China as the Northern Wei. These states opposed and promoted sinicization at one point or another but trended towards the latter and had merged with the general Chinese population by the Tang dynasty.



Output: b