user
Instruction
Answer the question based on the provided table.


Table
Table Title: 'Result' regarding '2014 Newark by-election'
Table Content:
| Party | Party | Candidate | Votes | % | ± |
| --- | --- | --- | --- | --- | --- |
| - | Conservative | Robert Jenrick | 17,431 | 45.0 | 8.9 |
| - | UKIP | Roger Helmer | 10,028 | 25.9 | +22.1 |
| - | Labour | Michael Payne | 6,842 | 17.7 | 4.7 |
| - | Independent | Paul Baggaley | 1,891 | 4.9 | N/A |
| - | Green | David Kirwan | 1,057 | 2.7 | N/A |
| - | Liberal Democrat | David Watts | 1,004 | 2.6 | 17.4 |
| - | Monster Raving Loony | Nick The Flying Brick | 168 | 0.4 | N/A |
| - | Independent | Andy Hayes | 117 | 0.3 | N/A |
| - | Bus-Pass Elvis | David Bishop | 87 | 0.2 | N/A |
| - | Common Good | Dick Rodgers | 64 | 0.2 | N/A |
| - | Patriotic Socialist Party | Lee Woods | 18 | 0.0 | N/A |
| Majority | Majority | Majority | 7,403 | 19.1 | 12.4 |
| Turnout | Turnout | Turnout | 38,707 | 52.79 | 19.61 |
| - | Conservative hold | Conservative hold | Swing | 15.5 | - |


Question
Who won the 2014 Newark by-election and by what margin?


Answer Format
The final answer should be a sentence and use the following format:
```json
{
    "answer": "your_generated_sentence_here"
}
```
rule
["Conservative Robert Jenrick won with a majority of 7,403."]