user
Instruction
Answer the question based on the provided table.


Table
Table Title: 'Result of the by-election on 21 September 1967' regarding '1967 Cambridge by-election'
Table Content:
| Party | Party | Candidate | Votes | % | ± |
| --- | --- | --- | --- | --- | --- |
| - | Conservative | David Lane | 20,488 | 51.61 | +8.19 |
| - | Labour | George Scurfield | 14,510 | 36.55 | 8.92 |
| - | Liberal | David Spreckley | 4,701 | 11.84 | +1.64 |
| Majority | Majority | Majority | 5,978 | 15.06 | - |
| Turnout | Turnout | Turnout | 39,699 | 65.7 | - |
| - | Conservative gain from Labour | Conservative gain from Labour | Swing | - | - |


Question
What was the outcome of the 1967 Cambridge by-election for the conservatives?


Answer Format
The final answer should be a sentence and use the following format:
```json
{
    "answer": "your_generated_sentence_here"
}
```
rule
["In the 1967 Cambridge by-elections, a swing of more than eight percent to the Conservatives saw their candidate David Lane win by 5,978 votes."]