instruction:
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.
question:
Question: How long was Frank Pick the general manager? Passage:Through his involvement with the Design and Industries Association Holden met Frank Pick, general manager of the Underground Electric Railways Company of London (UERL). Holden at the time had no experience in designing for transport, but this would change through his collaboration with Pick. In 1923, Pick commissioned Holden to design a façade for a side entrance at Westminster Underground station. This was followed in 1924 with an appointment to design the UERL's pavilion for the British Empire Exhibition. Also in 1924, Pick commissioned Holden to design seven new stations in south London for the extension of the City and South London Railway (now part of the Northern line) from Clapham Common to Morden. The designs replaced a set by the UERL's own architect, Stanley Heaps, which Pick had found unsatisfactory. The designs reflect the simple modernist style he was using in France for the war cemeteries; double-height ticket halls are clad in plain Portland stone framing a glazed screen, each adapted to suit the street corner sites of most of the stations. The screens feature the Underground roundel made up in coloured glass panels and are divided by stone columns surmounted by capitals formed as a three-dimensional version of the roundel. Holden also advised Heaps on new façades for a number of the existing stations on the line and produced the design for a new entrance at Bond Street station on the Central London Railway.

answer:
a


question:
Question: Which is the oldest city that borders Garden Grove? Passage:West Grove, officially recognized as the West Grove Business District by the City of Garden Grove, and sometimes called West Garden Grove, is a neighborhood in the city of Garden Grove, located in Orange County, California, United States. West Grove encompasses the pene-exclave western portion of the city of Garden Grove. It is bordered to the north by Cypress, to the west by Los Alamitos and Seal Beach, to the south by Westminster, and to the east by Stanton, and connected to the rest of Garden Grove by a narrow strip along Garden Grove Boulevard. It includes the entire 92845 ZIP Code, which is designated as the areas west of Knott Avenue to the Seal Beach and Los Alamitos city borders, and the industrial area east of Knott Avenue to the Stanton border. The community is more "affluent" than the rest of Garden Grove, with a median income $25,000 greater than the main body of the city. There is also less crime, a lower poverty rate, and the population density is lower compared to the rest of Garden Grove. As of the 2010 Census, 16,333 people reside in West Grove.

answer:
a


question:
Question: Which group ruled the longest? Passage:In the decline and fall of the Mughal supremacy and the rise of the Sikh power this district saw its most stirring scenes. Some of the Sikh Gurus have been closely associated with the district. Guru Nanak, born in 1469 in the Lahore district, married in 1485 with Sulkhani, daughter of Mool Chand, a Khatri of Pakhoke (Dera Baba Nanak) in the Batala Tehsil. There is still a wall known as Jhoolana Mahal which swings in Gurdaspur. The Sikh Guru Hargobind refounded Sri Hargobindpur which had been formerly known by the name of Rahila. Banda Singh Bahadur, the disciple of Guru Gobind Singh used this district as a base to raid the country up to Lahore, the emperor Bahadur Shah conducted an expedition against him in 1711 but with only temporary effect. Banda Bahadar fought his last battle with the Mughal at Gurdas Nangal in the district and was captured. The history of the district then degenerates into an account of their struggles with the rival Ramgarhia Misl and Kanhaiya Misls for supremacy in this part of the Doab, the power of the former was broken in 1808 and of the latter in 1811.

answer:

a