user
Instruction
Answer the question based on the provided table.


Table
Table Title: 'Personal bests' regarding 'Ivory Williams'
Table Content:
| Event | Time (seconds) | Venue | Date |
| --- | --- | --- | --- |
| 60 meters | 6.51 | Boston, Massachusetts, United States | February 6, 2010 |
| 100 meters | 9.93 | Rethymno, Greece | July 20, 2009 |
| 200 meters | 20.62 | Houston, Texas, United States | May 6, 2006 |
| 400 meters | 46.25 | Wichita, Kansas, United States | April 16, 2005 |


Question
What was Ivory Williams' personal best?


Answer Format
The final answer should be a sentence and use the following format:
```json
{
    "answer": "your_generated_sentence_here"
}
```
rule
["Ivory Williams recorded a personal best, running 9.93 seconds in Rethymno, Greece."]