user
Instruction
Answer the question based on the provided table.


Table
Table Title: Sky Track Cycling
Table Content:
| Date | Competition | Location | Country | Event | Placing | Rider | Nationality |
| --- | --- | --- | --- | --- | --- | --- | --- |
| 31 October 2008 | 2008–09 World Cup | Manchester | United Kingdom | Sprint | 1 | Victoria Pendleton | GBR |
| 31 October 2008 | 2008–09 World Cup | Manchester | United Kingdom | Keirin | 2 | Jason Kenny | GBR |
| 1 November 2008 | 2008–09 World Cup | Manchester | United Kingdom | Sprint | 1 | Jason Kenny | GBR |
| 1 November 2008 | 2008–09 World Cup | Manchester | United Kingdom | 500 m time trial | 1 | Victoria Pendleton | GBR |
| 2 November 2008 | 2008–09 World Cup | Manchester | United Kingdom | Team sprint | 1 | Ross Edgar | GBR |
| 2 November 2008 | 2008–09 World Cup | Manchester | United Kingdom | Team sprint | 1 | Jason Kenny | GBR |
| 2 November 2008 | 2008–09 World Cup | Manchester | United Kingdom | Team sprint | 1 | Jamie Staff | GBR |
| 2 November 2008 | 2008–09 World Cup | Manchester | United Kingdom | Keirin | 1 | Victoria Pendleton | GBR |
| 2 November 2008 | 5th International Keirin Event | Manchester | United Kingdom | International keirin | 2 | Ross Edgar | GBR |
| 13 February 2009 | 2008–09 World Cup | Copenhagen | Denmark | Team sprint | 1 | Chris Hoy | GBR |
| 13 February 2009 | 2008–09 World Cup | Copenhagen | Denmark | Team sprint | 1 | Jason Kenny | GBR |
| 13 February 2009 | 2008–09 World Cup | Copenhagen | Denmark | Team sprint | 1 | Jamie Staff | GBR |
| 13 February 2009 | 2008–09 World Cup | Copenhagen | Denmark | Sprint | 1 | Victoria Pendleton | GBR |
| 30 October 2009 | 2009–10 World Cup | Manchester | United Kingdom | Keirin | 1 | Chris Hoy | GBR |
| 30 October 2009 | 2009–10 World Cup | Manchester | United Kingdom | Sprint | 1 | Victoria Pendleton | GBR |
| 30 October 2009 | 2009–10 World Cup | Manchester | United Kingdom | Sprint | 1 | Chris Hoy | GBR |
| 30 October 2009 | 2009–10 World Cup | Manchester | United Kingdom | 500 m time trial | 2 | Victoria Pendleton | GBR |
| 1 November 2009 | 2009–10 World Cup | Manchester | United Kingdom | Team sprint | 1 | Ross Edgar | GBR |
| 1 November 2009 | 2009–10 World Cup | Manchester | United Kingdom | Team sprint | 1 | Chris Hoy | GBR |
| 1 November 2009 | 2009–10 World Cup | Manchester | United Kingdom | Team sprint | 1 | Jamie Staff | GBR |


Question
what is the total number of first places earned by sky track riders?


Answer Format
The final answer should be concise and use the following format:
```json
{
    "answer": [
        "answer1",
        "answer2",
        ...
    ]
}
```
rule
["17"]