user
Instruction
Answer the question based on the provided table.


Table
Table Title: 'Votes' regarding '1955 South Norfolk by-election'
Table Content:
| Party | Party | Candidate | Votes | % | ± |
| --- | --- | --- | --- | --- | --- |
| - | Conservative | John Hill | 15,119 | 51.5 | −3.0 |
| - | Labour | J.M. Stewart | 14,254 | 48.5 | +3.0 |
| Majority | Majority | Majority | 865 | 2.9 | −6.1 |
| Turnout | Turnout | Turnout | 29,373 | - | - |
| - | Conservative hold | Conservative hold | Swing | −3.0 | - |


Question
Who won the election and by how much?


Answer Format
The final answer should be a sentence and use the following format:
```json
{
    "answer": "your_generated_sentence_here"
}
```
rule
["The result was a win for the Conservative candidate John Hill, with a majority of 865 votes (2.9%) over his opponent, the Labour candidate J.M. Stewart."]