user
Instruction
Answer the question based on the provided table.


Table
Table Title: 'International competitions' regarding 'Dahlia Duhaney'
Table Content:
| Year | Competition | Venue | Position | Event | Notes |
| --- | --- | --- | --- | --- | --- |
| Representing Jamaica | Representing Jamaica | Representing Jamaica | Representing Jamaica | Representing Jamaica | Representing Jamaica |
| 1988 | World Junior Championships | Sudbury, Canada | 16th (q) | Long jump | 5.93 m (+1.4 m/s) |
| 1991 | Pan American Games | Havana, Cuba | 4th | 100 m | 11.62 |
| 1991 | Pan American Games | Havana, Cuba | 6th | 200 m | 23.77 |
| 1991 | Pan American Games | Havana, Cuba | 1st | 4 x 100 m | 43.79 |
| 1991 | World Championships | Tokyo, Japan | 1st | 4 x 100 m | 41.94 |
| 1992 | Olympic Games | Barcelona, Spain | — | 4 x 100 m | DNF |
| 1993 | World Student Games | Buffalo, United States | 1st | 100 m | 11.56 |
| 1993 | World Student Games | Buffalo, United States | 2nd | 200 m | 22.79 w |
| 1994 | Commonwealth Games | Victoria, Canada | 5th | 100 m | 11.34 |
| 1994 | Commonwealth Games | Victoria, Canada | 6th | 200 m | 22.85 |
| 1994 | Commonwealth Games | Victoria, Canada | 4th | 4 x 100 m | 43.51 |
| 1995 | Pan American Games | Mar del Plata, Argentina | 2nd | 200 m | 23.03 |
| 1995 | World Championships | Gothenburg, Sweden | 2nd | 4 x 100 m | 42.25 |


Question
What event and competition did Dahlia Duhany win in Tokyo, Japan in 1991?


Answer Format
The final answer should be a sentence and use the following format:
```json
{
    "answer": "your_generated_sentence_here"
}
```
rule
["Dahlia Duhaney won the world title in the women's 4 x 100 m relay at the 1991 World Championships in Tokyo, Japan."]