user
Instruction
Answer the question based on the provided table.


Table
Table Title: 'Release history' regarding 'Digital Rock (album)'
Table Content:
| Country | Date | Label | Format |
| --- | --- | --- | --- |
| Japan | 19 July 2006 | Sony | CD, digital download |
| United Kingdom | 31 July 2006 | Tiger Trax | Digital download |
| United Kingdom | 29 January 2007 | Tiger Trax | CD |


Question
When and on which label was Digital Rock first released in the United Kingdom on digital and CD, respectively?


Answer Format
The final answer should be a sentence and use the following format:
```json
{
    "answer": "your_generated_sentence_here"
}
```
rule
["Digital Rock was released digitally on 31 July 2006 and physically on 29 January 2007 in the United Kingdom by Tiger Trax Records."]