user
Instruction
Answer the question based on the provided table.


Table
Table Title: 'General Election 2005 result' regarding '2008 Henley by-election'
Table Content:
| Party | Party | Candidate | Votes | % | ± |
| --- | --- | --- | --- | --- | --- |
| - | Conservative | Boris Johnson | 24,894 | 53.5 | +7.4 |
| - | Liberal Democrat | David Turner | 12,101 | 26.0 | –1.0 |
| - | Labour | Kaleem Saeed | 6,862 | 14.7 | –6.4 |
| - | Green | Mark Stevenson | 1,518 | 3.3 | +0.7 |
| - | UKIP | Delphine Gray-Fisk | 1,162 | 2.5 | –0.7 |
| Majority | Majority | Majority | 12,793 | 27.5 | - |
| Turnout | Turnout | Turnout | 46,537 | 67.9 | +3.6 |
| - | Conservative hold | Conservative hold | Swing | +4.2 | - |


Question
Which candidate won and by what majority of votes against the Liberal Democrats in the 2005 General election preceding the 2008 Henley by-election?


Answer Format
The final answer should be a sentence and use the following format:
```json
{
    "answer": "your_generated_sentence_here"
}
```
rule
["Johnson had gained 12,793 majority, from the Liberal Democrats at the election."]