user
Instruction
Answer the question based on the provided table.


Table
Table Title: 'International competitions' regarding 'Winnie Ng'
Table Content:
| Year | Competition | Venue | Position | Event | Notes |
| --- | --- | --- | --- | --- | --- |
| 1983 | World Women's Road Race Championships | San Diego, California | 43rd | 10K | 35:24 |
| 1984 | Olympic Games | Los Angeles, California | 31st | Marathon | 2:42:38 |
| 1985 | World Marathon Cup | Hiroshima, Italy | 54th | Marathon | 2:54:42 |
| 1989 | World Marathon Cup | Milan, Italy | 47th | Marathon | 2:55:04 |
| 1993 | World Championships | Stuttgart, Germany | 23rd | Marathon | 2:58:41 |
| 1994 | World Half Marathon Championships | Oslo, Norway | 77th | Half marathon | 1:17:37 |
| 1995 | World Championships | Gothenburg, Sweden | 30th | Marathon | 3:01:08 |
| 2000 | Asian Marathon Championships | Pattaya, Thailand | 3rd | Marathon | 3:09:43 |


Question
How did Winnie Ng perform at the World Championships?


Answer Format
The final answer should be a sentence and use the following format:
```json
{
    "answer": "your_generated_sentence_here"
}
```
rule
["At the World Championships, Winnie Ng participated twice in the marathon finishing 23rd in 1993 and 30th in 1995."]