Question: Which ethnic subgroup in southern China lived on the coastal areas of Kowloon, Hong Kong from around 1916 to 1990?
Context: After the First Opium War in 1842, China ceded Hong Kong Island to Britain under the Nanking Treaty.  Subsequently in 1898, China leased the lands surrounding Hong Kong Island which includes the New Territories, the Kowloon peninsula and outlying islands to Britain rent free for 99 years under the Convention for the Extension of Hong Kong Territory following China's defeat in the First Sino Japanese War.  These unequal treaties has granted Britain the power to colonise the whole of Hong Kong.  Even though Hong Kong was eventually handed back to China at the handover in 1997, the British culture has remained evident in Hong Kong's way of life in various aspects after more than 150 years of British rule.  In several major aspects such as the education system, language and food culture, the British culture has been so ingrained during the colonial rule that it has become an integral part of Hong Kong culture. The Shanghai–Kowloon Through Train is an intercity railway service between Kowloon Station (also known as Hung Hom Station) in Hong Kong and the Shanghai Railway Station, jointly operated by the MTR of Hong Kong and China's national rail service (Shanghai Railway Bureau).  The numbers of this train service is Z99B (being away from Shanghai) and Z100B (being towards Shanghai).  Services operate along the East Rail Line in Hong Kong, crossing the boundary between Hong Kong and mainland China at Lo Wu/Luohu and then continuing along China's railway network via the Guangshen railway, Jingguang railway and the Hukun railway to Shanghai.  The Through Train runs every other day.  The journey time is approximately 20 hours. The Xiang-speaking Chinese or Hunanese people (; Xiang Chinese: 湘語人 Shiāen'ỳ nin) are a Xiang-speaking Han ethnic subgroup originating from Hunan province in Southern China, but Xiang-speaking people are also found in the adjacent provinces of Guangxi and Guizhou. British Hong Kong () was the period during which Hong Kong was under British Crown rule from 1841 to 1997 (excluding the Japanese occupation from 1941 to 1945).  It was established as a Crown colony and later designated a British Dependent Territory in 1981.  Hong Kong Island was ceded to Great Britain by the Qing dynasty of China after the First Opium War (1839–42).  The Kowloon Peninsula was added to the colony after the Second Opium War (1856–60).  Finally, in 1898, the New Territories were added under a 99-year lease.  Although Hong Kong Island and Kowloon were ceded to Britain in perpetuity, the New Territories – which comprised over 90 per cent of Hong Kong's land – had such a vital role in the economy that the British government agreed to transfer sovereignty of the entirety of Hong Kong to China upon the expiration of the lease in 1997.  The transfer has been credited by some as marking the end of the British Empire. The Great Clearance, also translated as the Great Evacuation or Great Frontier Shift, refers to two edicts by the Kangxi Emperor of Qing (1644–1912), and his regent Oboi, in 1661 and 1662.  It required the evacuation of the coastal areas of Guangdong in order to fight the Taiwan-based anti-Qing loyalist movement of the erstwhile Ming dynasty (1368–1644).  Other provinces in southern China, including Zhejiang, Jiangsu and Fujian, as well as Shandong in the north, were also affected to varying degrees.  The ban on human settlement of those coastal areas was lifted in 1669, and some residents were allowed to return. The Tankas () or boat people are an ethnic subgroup in Southern China who have traditionally lived on junks in coastal parts of Guangdong, Guangxi, Fujian, Hainan, and Zhejiang, as well as Hong Kong, and Macau.  Though many now live onshore, some from the older generations still live on their boats and pursue their traditional livelihood of fishing.  Historically, the Tankas were considered to be outcasts.  Since they were boat people who lived by the sea, they were sometimes referred to as "sea gypsies" by the Chinese and British.  Tanka origins can be traced back to the native ethnic minorities of southern China who may have taken refuge on the sea and gradually assimilated into Han culture.  However, Tanka have preserved many of their native traditions that are not found in Han Chinese culture. Playhouse Disney Hong Kong is a Playhouse Disney-branded pay cable television channel for viewers in Hong Kong based in Kowloon Peninsula and is available in 3-national languages: English, Cantonese and Chinese.  This channel is only available on Cable TV Hong Kong in Hong Kong on Channel 136, Now TV in Hong Kong on Channel 442 and HKBN bbTV in Hong Kong on Channel 312.  The old name for Playhouse Disney Hong Kong was Disney Channel Asia.  English, Cantonese and Chinese are available 24-hours in daily.  Playhouse Disney Hong Kong's main competitors are Hong Kong Disneyland.  Lindsay Lohan was the ambassador for Playhouse Disney Hong Kong. Yau Ma Tei boat people refers to those who lived in the Yau Ma Tei Typhoon Shelter, Kowloon, Hong Kong from around 1916 to 1990.  Yau Ma Tei boat people mainly consisted of Tanka people.  In the 1980s many families moved to public housing on land under a special Housing Authority scheme.  The original typhoon shelter was filled in under the Airport Core Programme in the 1990s. New Towns in Hong Kong are areas that the Hong Kong government started developing in the 1950s, in order to accommodate the booming population.  At the first phase of development, the newly developed towns were called "satellite town", a concept borrowed from the United Kingdom, of which Hong Kong was then still a colony.  Kwun Tong, located at eastern Kowloon, and Tsuen Wan, located at the south-west New Territories, were designated as the first two satellite towns, when the urban area in Hong Kong was still relatively small, restricted to the central and western part of Kowloon Peninsula and the northern side of Hong Kong Island.  Wah Fu Estate was also built in a remote corner at the southern side of Hong Kong Island, with similar concepts in a smaller scale. New Territories () is one of the three main regions of Hong Kong, alongside Hong Kong Island and the Kowloon Peninsula.  It makes up 86.2% of Hong Kong's territory, and contains around half of the population of Hong Kong.  Historically, it is the region described in The Convention for the Extension of Hong Kong Territory.  According to that the territories comprise the mainland area north of the Boundary Street of Kowloon Peninsula and south of the Sham Chun River which is the border between Hong Kong and Mainland China, as well as over 200 outlying Islands including Lantau Island, Lamma Island, Cheung Chau, and Peng Chau in the territory of Hong Kong.
Answer: Tanka people