Question: What is the currency in the place Overheard 2 is set?

full_context: Document 1: One Nite in Mongkok: One Nite in Mongkok () is a 2004 Hong Kong crime thriller film written and directed by Derek Yee and starring Daniel Wu, Cecilia Cheung and Alex Fong. The film is a sequel to the Yee produced 2000 film, "Double Tap", with Fong reprising his role from the previous installment. A sequel to the film, "Triple Tap", was released in 2010, which was once again directed by Yee and featured Fong reprising his role, while also starring Wu in a different role.
Document 2: History of Chinese currency: The currency became legal tender in China commencing in 1937. It was later replaced by issues from puppet banks. However, the currency remained in force in Hong Kong between 1941 and 1945. Initially set at HK$2 = JMY1, the Hong Kong dollar was largely preferred by locals and hoarded away. In order to address this, the Japanese government made possession of Hong Kong dollars illegal in 1943 and required a conversion to JMY at 4 to 1.
Document 3: Election 2: Election 2 (literal title: "Black Society: Harmony is a Virtue"), also known as Triad Election in the United States, is a 2006 Category III Hong Kong crime film directed by Johnnie To with a large ensemble cast that includes Louis Koo, Simon Yam and Nick Cheung. A sequel to the 2005 film "Election", the film concludes the events of the first film centring on Lok (Yam), who this time struggles to keep his title as triad boss as a triad re-election draws near, while Jimmy (Koo) attempts to retire as a triad to become a legitimate businessman.
Document 4: Thai baht: The baht (; Thai: บาท, pronounced [bàːt]; sign: ฿; code: THB) is the official currency of Thailand. It is subdivided into 100 satang (สตางค์, pronounced [sātāːŋ]). The issuance of currency is the responsibility of the Bank of Thailand.
Document 5: Triple Tap: Triple Tap () is a 2010 Hong Kong action film directed by Derek Yee and starring Louis Koo and Daniel Wu. This film is a sequel to Yee's 2004 film, "One Nite in Mongkok", which starred Wu in a different role, and his 2000 film, "Double Tap", which starred Leslie Cheung and Alex Fong, the latter being only actor to reprise his role from both previous installment.
Document 6: Australian dollar: The Australian dollar (sign: $; code: AUD) is the currency of the Commonwealth of Australia, including its external territories Christmas Island, Cocos (Keeling) Islands, and Norfolk Island, as well as the independent Pacific Island states of Kiribati, Nauru, Papua New Guinea, Tonga, Tuvalu, and Vanuatu. Within Australia, it is almost always abbreviated with the dollar sign ($), with A $or AU $sometimes used to distinguish it from other dollar - denominated currencies. It is subdivided into 100 cents.
Document 7: Overheard 3: Overheard 3 (Chinese: 竊聽風雲3) is a 2014 Hong Kong-Chinese crime-thriller film written and directed by Alan Mak and Felix Chong and starring Sean Lau, Louis Koo, Daniel Wu, Zhou Xun and Michelle Ye. It is a sequel to the 2011 film "Overheard 2" in which Lau, Koo and Wu play different roles with a different storyline (abolishing the Small House Policy), but the key elements of the previous two films are kept. The film was released in China on 29 May 2014 and in Hong Kong on 5 June 2014.
Document 8: Malaysian ringgit: The Malaysian ringgit (/ ˈrɪŋɡɪt /; plural: ringgit; symbol: RM; currency code: MYR; formerly the Malaysian dollar) is the currency of Malaysia. It is divided into 100 sen (cents). The ringgit is issued by the Bank Negara Malaysia.
Document 9: Bermudian dollar: The Bermudian dollar (symbol: $; code: BMD; also abbreviated BD$; informally called the Bermuda dollar) is the official currency of the British Overseas Territory of Bermuda.  It is subdivided into 100 cents. The Bermudian dollar is not normally traded outside Bermuda, and is pegged to the United States dollar at a one-to-one ratio.  Both currencies circulate in Bermuda on an equal basis.
Document 10: Running Out of Time 2: Running Out of Time 2 (, literal title:"Hidden War 2") is a 2001 Hong Kong crime caper film co-directed by Johnnie To and Law Wing-cheung. It is a sequel to To's 1999 film "Running Out of Time", with Lau Ching-wan returning as Inspector Ho Sheung-sang, who this time has to go after an elusive thief played by Ekin Cheng.
Document 11: Hong Kong dollar: The Hong Kong dollar (Chinese: 港幣; Cantonese Yale: Góng bàih; sign: HK $; code: HKD) is the official currency of Hong Kong. It is subdivided into 100 cents. The Hong Kong Monetary Authority is the governmental currency board and also the de facto central bank for Hong Kong and the Hong Kong dollar.
Document 12: Overheard 2: Overheard 2 is a 2011 Hong Kong crime thriller film produced by Derek Yee, written and directed by Alan Mak and Felix Chong and starring Louis Koo, Lau Ching-wan and Daniel Wu. It is a sequel to the 2009 film "Overheard" where Koo, Lau and Wu play different roles with a different storyline, but the key elements of the first film are kept. Another sequel, "Overheard 3" was released on 30 May 2014.
Document 13: Bahamian dollar: The dollar (sign: $; code: BSD) has been the currency of The Bahamas since 1966. It is normally abbreviated with the dollar sign "$", or alternatively B$ to distinguish it from other dollar-denominated currencies. It is divided into 100 cents.
Document 14: Banknotes of the pound sterling: Banknotes of the Pound Sterling Pound sterling banknotes The UK & crown dependencies (red) and overseas territories (blue) using the Pound or their local issue ISO 4217 Code GBP (Great Britain Pound) Denominations Currency symbol £Subunit Penny (1 / 100) Subunit symbol p Banknotes Freq. used £5, £10, £20, £50 Rarely used £1 (Not used by the Bank of England or in NI), £100 (Not used by the Bank of England) Higher valued Banknotes do exist, such as the £1,000,000 (Giant) and £100,000,000 (Titan), however, usage is restricted ``- such as through backing Scottish and Northern Ireland Currencies ''Demographics Users United Kingdom Jersey Guernsey Isle of Man South Georgia and the South Sandwich Islands St Helena, Ascension and Tristan da Cunha (Tristan da Cunha only) Gibraltar. Issuance Central Bank Bank of England Note - issuing banks England and Wales Bank of England Scotland Bank of Scotland Royal Bank of Scotland Clydesdale Bank Northern Ireland Northern Bank / Danske Bank First Trust Bank Ulster Bank Bank of Ireland Crown dependencies States of Guernsey States of Jersey Isle of Man Government Printer De La Rue
Document 15: Infernal Affairs: Infernal Affairs is a 2002 Hong Kong crime thriller film directed by Andrew Lau and Alan Mak and written by Mak and Felix Chong. It tells the story of a police officer who infiltrates a Triad, and another officer secretly working for the same gang. It is the first in the "Infernal Affairs" series and is followed by "Infernal Affairs II" and "Infernal Affairs III".
ground_truth: Hong Kong dollar
sub_queries: Which place is Overheard 2 in? Answer: Hong Kong
what is the currency in Hong Kong china Answer: Hong Kong dollar