user
Instruction
Answer the question based on the provided table.


Table
Table Title: 'Presidents of the Congress' regarding 'List of Presidents of the Congress of New Caledonia'
Table Content:
| Took office | Left office | President | Notes | Party | Party |
| --- | --- | --- | --- | --- | --- |
| 7 October 1985 | 2 May 1988 | Dick Ukeiwé | - | - | The Rally–UMP |
| 2 May 1988 | 11 June 1989 | Albert Etuve | - | - | The Rally–UMP |
| 28 June 1989 | 7 July 1995 | Simon Loueckhote | - | - | The Rally–UMP |
| 31 July 1995 | 16 July 1997 | Pierre Frogier | - | - | The Rally–UMP |
| 16 July 1997 | 3 June 1998 | Harold Martin | - | - | The Rally–UMP |
| 3 June 1998 | 9 May 2004 | Simon Loueckhote | - | - | The Rally–UMP |
| 21 May 2004 | 3 July 2007 | Harold Martin | - | - | L'Avenir Ensemble |
| 31 July 2007 | 10 May 2009 | Pierre Frogier | - | - | The Rally–UMP |
| 22 May 2009 | 3 March 2011 | Harold Martin | - | - | L'Avenir Ensemble |
| 1 April 2011 | 29 August 2012 | Roch Wamytan | - | - | Kanak and Socialist National Liberation Front |
| 29 August 2012 | 7 August 2013 | Gérard Poadja | - | - | Caledonia Together |
| 7 August 2013 | 23 May 2014 | Roch Wamytan | - | - | Kanak and Socialist National Liberation Front |
| 23 May 2014 | 17 July 2015 | Gaël Yanno | - | - | Popular Caledonian Movement |
| 17 July 2015 | 30 July 2018 | Thierry Santa | - | - | The Rally–UMP |
| 30 July 2018 | Incumbent | Gaël Yanno | - | - | Popular Caledonian Movement |


Question
On which dates did Harold Martin take office as President of the Congress of New Caledonia?


Answer Format
The final answer should be a sentence and use the following format:
```json
{
    "answer": "your_generated_sentence_here"
}
```
rule
["Harold Martin took office three times as President of the Congress of New Caledonia: 16 July 1997, 21 May 2004, and 22 May 2009."]