Q:Information:  - Ong Teng Cheong (22 January 1936  8 February 2002), was a Singaporean politician and businessman who was President of Singapore from 1993 to 1999. Prior to taking office as President, he was a member of the ruling People's Action Party and served as Deputy Prime Minister from 1985 to 1993. He was Singapore's first directly elected president, serving a six-year term from 1 September 1993 to 31 August 1999.  - The President of the Republic of Singapore is Singapore's head of state. In a Westminster parliamentary system, as which Singapore governs itself, the prime minister is the head of the government while the president is largely ceremonial, broadly analogous to the Sovereign of the United Kingdom.   - The Singaporean presidential election of 1993 was the first presidential election held in Singapore . Polling day was 28 August 1993 . Former Deputy Prime Minister Ong Teng Cheong became Singapore 's first directly elected President . He defeated former Accountant - General Chua Kim Yeow , with a vote share of 58.69 % to 41.31 % .    After reading the paragraphs above, choose the best answer for the entity that related to 'singaporean presidential election' with the relationship of 'office contested'.  Choices: - deputy  - president  - president of singapore  - prime minister
A:
president of singapore