Definition: 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.
Input: Question: Which of the boroughs of London that about a quarter of the Chinese population living in the UK has the highest total population? Passage:By the late 1960s, the Chinese restaurants and shops around Gerrard Street, Lisle Street, and Little Newport Street had evolved into "Tong Yan Kai", otherwise known as Chinatown. The general public developed a taste for Chinese food during the postwar restaurant boom. In 1963, the Zhongshan Workers' Club opened in the West End, showing films and running classes. The first Chinese New Year celebrations were held in Gerrard Street. The Overseas Chinese Service opened the first specialised agency to assist the Chinese in dealing with the host society by offering a translation and interpreting service. In the 1970s and 1980s, many ethnic Chinese who had settled in Vietnam for generations were forced to leave as "boat people" following the Vietnam War. Many settled in Lewisham, Lambeth, and Hackney, as well as elsewhere in the UK. The 1980s and 1990s saw a migration of academics and professionals from Chinatown to the suburbs of Croydon and Colindale. Since the 1980s, London's Chinatown has been transformed by Westminster City Council to become a major tourist attraction and a cultural focal point of the Chinese community in London. Today over 100,000 Chinese people live in London, and are more evenly dispersed throughout the city and its boroughs. Roughly a quarter of the Chinese population of the United Kingdom now live in London, mainly in the boroughs of Barnet, Haringey, Waltham Forest, Hackney, Southwark and Westminster. Mare Street in Hackney is the hub of a small Vietnamese community. The principal languages of the London Chinese community are Cantonese and Hakka (from the New Territories, Hong Kong, and Vietnam). There are also some speakers of Hokkien, Teochew and Hainanese. The Chinese from the People's Republic of China, Taiwan, and Singapore tend to speak Mandarin (or Putonghua). A large network of Chinese schools and community centres offers support and a means of passing on cultural identity from one generation to the next.


b