paragraph_text: The dollar (currency code TTD) is the currency of Trinidad and Tobago. It is normally abbreviated with the dollar sign $, or alternatively TT $to distinguish it from other dollar - denominated currencies. It is subdivided into 100 cents. Its predecessor currencies are the Trinidadian dollar and the Tobagan dollar.

paragraph_text: Shades of Truth (Traditional Chinese: 水滸無間道; literally "Water Margin's Unceasing Path") is a 25-episode television comedy-drama from Hong Kong. Produced by Siu Hin-fai, the drama is a TVB production. The story is a parody on the legendary story of Wu Song from the Chinese classical novel "Water Margin" (水滸傳) and also the 2002 Hong Kong crime-thriller film "Infernal Affairs" (無間道).

paragraph_text: BRICS is the acronym for an association of five major emerging national economies: Brazil, Russia, India, China and South Africa. Originally the first four were grouped as ``BRIC ''(or`` the BRICs''), before the induction of South Africa in 2010. The BRICS members are all leading developing or newly industrialized countries, but they are distinguished by their large, sometimes fast - growing economies and significant influence on regional affairs; all five are G - 20 members. Since 2009, the BRICS nations have met annually at formal summits. China hosted the 9th BRICS summit in Xiamen on September 3rd, 4th and 5th, 2017. The term does not include countries such as South Korea, Mexico and Turkey for which other acronyms and group associations were later created.

paragraph_text: Infernal Affairs is a series of three crime-thriller films directed by Andrew Lau and Alan Mak, starring Andy Lau and Tony Leung. It tells the story of a police officer who infiltrates the triads, and a police officer secretly working for the same gang. The Chinese title means "the non-stop way", a reference to Avici, the lowest level of hell in Buddhism. The English title is a word play combining the law enforcement term "internal affairs" with the adjective 'infernal'.

paragraph_text: Infernal Bridegroom Productions (IBP) was a theater company located in Houston, Texas, formed in 1993 and dissolved in 2007. IBP garnered national attention when it was featured on the cover of American Theatre in September, 2002, for its original play, "We Have Some Planes", by Brian Jucha, about the events of September 11. The theater's name is taken from a line in one of its first productions, "In the Jungle of Cities" by Bertolt Brecht. The line reads, "In my dreams I call him my infernal bridegroom." IBP produced over 60 plays, many of them world premieres.

paragraph_text: The South African rand (sign: R; code: ZAR) is the currency of South Africa. The rand is subdivided into 100 cents (sign: ``c ''). The ISO 4217 code is ZAR, from Dutch Zuid - Afrikaanse Rand (South African rand). The rand is legal tender in the Common Monetary Area between South Africa, Swaziland, Lesotho, and Namibia, although the latter three countries do have their own currencies.

paragraph_text: 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".

paragraph_text: On March 1, 1979, the two countries formally established embassies in each other's capitals. In 1979, outstanding private claims were resolved and a bilateral trade agreement was completed. Vice President Walter Mondale reciprocated Vice Premier Deng's visit with an August 1979 trip to China. This visit led to agreements in September 1980 on maritime affairs, civil aviation links, and textile matters, as well as a bilateral consular convention.

paragraph_text: The Bank of Sierra Leone is the central bank of Sierra Leone. It issues the country's currency, known as the Leone. The bank formulates and implements monetary policy, including foreign exchange.

paragraph_text: Late Imperial China maintained both a silver and a copper currency system. The copper system was based on the copper cash (wen). The silver system had several units which by the Qing Dynasty were: 1 tael = 10 mace = 100 candareens = 1000 lí (silver cash).

paragraph_text: A currency transaction report (CTR) is a report that U.S. financial institutions are required to file with FinCEN for each deposit, withdrawal, exchange of currency, or other payment or transfer, by, through, or to the financial institution which involves a transaction in currency of more than $10,000. Used in this context, currency means the coin and / or paper money of any country that is designated as legal tender by the country of issuance. Currency also includes U.S. silver certificates, U.S. notes, Federal Reserve notes, and official foreign bank notes.

paragraph_text: 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.

paragraph_text: 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.

paragraph_text: China is the largest unitary state in the world by both population and land area. Although China has had long periods of central rule for centuries, it is often argued that the unitary structure of the Chinese government is far too unwieldy to effectively and equitably manage the country's affairs. On the other hand, Chinese nationalists are suspicious of decentralization as a form of secessionism and a backdoor for national disunity; still others argue that the degree of autonomy given to provincial-level officials in the People's Republic of China amounts to a de facto federalism.

paragraph_text: Caucasian Review of International Affairs is a quarterly peer-reviewed online academic journal covering the countries of the Caucasus and the issues of contemporary international relations. It was established in 2006 as the "Caucasian Journal of European Affairs".

paragraph_text: Daisy () is a 2006 film directed by Hong Kong filmmaker Andrew Lau of the "Infernal Affairs" trilogy. "Daisy" is an urban romantic melodrama involving young painter Hye-young (Jun Ji-hyun), Interpol detective Jeong Woo (Lee Sung-jae), and professional hitman Park Yi (Jung Woo-sung).

paragraph_text: The crisis started in Thailand (known in Thailand as the Tom Yum Goong crisis; Thai: วิกฤตต้มยำกุ้ง) with the financial collapse of the Thai baht after the Thai government was forced to float the baht due to lack of foreign currency to support its currency peg to the U.S. dollar. Capital flight ensued, beginning an international chain reaction. At the time, Thailand had acquired a burden of foreign debt that made the country effectively bankrupt even before the collapse of its currency. As the crisis spread, most of Southeast Asia and Japan saw slumping currencies, devalued stock markets and other asset prices, and a precipitous rise in private debt.Indonesia, South Korea, and Thailand were the countries most affected by the crisis. Hong Kong, Laos, Malaysia and the Philippines were also hurt by the slump. Brunei, China, Singapore, Taiwan, and Vietnam were less affected, although all suffered from a loss of demand and confidence throughout the region. Japan was also affected, though less significantly.

paragraph_text: ISO 4217 is a standard first published by International Organization for Standardization in 1978, which delineates currency designators, country codes (alpha and numeric), and references to minor units in three tables:

paragraph_text: Le Chaudron infernal, released in Britain as The Infernal Cauldron and in the United States as The Infernal Caldron and the Phantasmal Vapors, is a 1903 French silent film directed by Georges Méliès. It was released by Méliès's Star Film Company and is numbered 499–500 in its catalogues.

paragraph_text: Customs gold units (關金圓, pinyin: guānjīnyuán) were issued by the Central Bank of China to facilitate payment of duties on imported goods. Unlike the national currency which suffered from hyperinflation, the CGUs were pegged to the U.S. dollar at 1 CGU = US$0.40.

Question: What is the currency in the city in China where the thriller Internal Affairs was produced?
Answer: Hong Kong dollar