user
Instruction
Answer the question based on the provided table.


Table
Table Title: 'Standings after the race' regarding '1975 National 500'
Table Content:
| Pos | Driver | Points | Differential |
| --- | --- | --- | --- |
| - | Richard Petty | 4166 | 0 |
| 2 | Benny Parsons | 3288 | 878 |
| 3 | Dave Marcis | 3287 | 879 |
| - | James Hylton | 3268 | 898 |
| - | Richard Childress | 3233 | 933 |
| - | Cecil Gordon | 3083 | 1083 |
| - | Darrell Waltrip | 2990 | 1176 |
| - | Elmo Langley | 2838 | 1328 |
| - | Cale Yarborough | 2772 | 1394 |
| - | Buddy Baker | 2695 | 1471 |


Question
In the 1975 National 500 Who won the race and what advantage did the winner receive?


Answer Format
The final answer should be a sentence and use the following format:
```json
{
    "answer": "your_generated_sentence_here"
}
```
rule
["Richard Petty beat Benny Parsons which gave him an 878 points advantage after the 1975 National 500."]