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: Was WB Network more popular than Fox Television the year Black Family Channel folded? Passage:In 1987, Townsend wrote, directed and produced Hollywood Shuffle, a satire based on the hardships and obstacles that black actors undergo in the film industry. The success of his first project helped him establish himself in the industry. Another of his films was The Five Heartbeats based on 1960s R&B male groups and the tribulations of the music industry. Townsend created and produced two television variety shows—the CableACE award–winning Robert Townsend and His Partners in Crime for HBO, and the Fox Television variety show Townsend Television (1993). He also created and starred in the WB Network's sitcom The Parent 'Hood which originally ran from January 1995 to July 1999. In 2018, Townsend also directed 2 episodes for the B.E.T. Series American Soul which began airing in 2019. The show is about Don Cornelius and Soul Train. Townsend was programming director at the Black Family Channel, but the network folded in 2007. Townsend created The Robert Townsend Foundation, a nonprofit organization whose mission is to introduce and help new unsigned filmmakers.

Example Output: a

Example Input: Question: How old was John Hamilton, 1st Marquess of Abercorn, when his younger son was elected to Parliament? Passage:The younger son of John Hamilton, 1st Marquess of Abercorn, he was evidently educated at Harrow School, where he was a lieutenant of volunteers in 1803. He matriculated at Christ Church, Oxford on 24 October 1805, but left there for Cambridge, where he was admitted as a nobleman to St John's College on 19 October 1807. In the mean time, he was elected as Member of Parliament for Dungannon at the general election in May 1807, though underage, through the patronage of his father's political ally, Thomas Knox, 1st Viscount Northland. It was intended that he should later contest County Donegal or County Tyrone, but he suffered from illness, and may not ever have taken his seat. In January 1808, he sailed for Brazil in the brig Eclipse to recover his health, but died in Madeira in June.

Example Output: b

Example Input: Question: How long did Aulus Plautius live after capturing the lands south of the River Trent? Passage:The general outline of the Roman conquest of Britain during the 1st century AD is recorded by historical sources; for the involvement of specific forts historians depend on archaeological excavations. This part of Britain was occupied by a tribe known as the Cornovii. In AD 46–47 the Roman Army led by governor Aulus Plautius had probably occupied the lands to the south of the River Trent. Late in 47 the new governor of Britain, Ostorius Scapula, began a campaign against the tribes of the western mountains (modern Wales). Caratacus, their leader, was defeated in battle in AD 50 and fled to the Brigantes who occupied the Pennines. Their queen, Cartimandua, came to terms with the Romans and handed Caratacus over to them. Ostorius died and was replaced by Aulus Gallus who brought the Welsh borders under control but did not move further north or west. It was at about this time that the fort at Strutt's Park was built. It probably lay not far south of the border between Roman territory and that held by the Brigantes, who were now an allied or subject kingdom.

Example Output:
a