user
Instruction
Answer the question based on the provided table.


Table
Table Title: 'Second round' regarding '2010 Open Championship'
Table Content:
| Place | Player | Country | Score | To par |
| --- | --- | --- | --- | --- |
| 1 | Louis Oosthuizen | South Africa | 65-67=132 | −12 |
| 2 | Mark Calcavecchia | United States | 70-67=137 | −7 |
| T3 | Alejandro Cañizares | Spain | 67-71=138 | −6 |
| T3 | Paul Casey | England | 69-69=138 | −6 |
| T3 | Jin Jeong (a) | South Korea | 68-70=138 | −6 |
| T3 | Lee Westwood | England | 67-71=138 | −6 |
| T7 | Ricky Barnes | United States | 68-71=139 | −5 |
| T7 | Retief Goosen | South Africa | 69-70=139 | −5 |
| T7 | Peter Hanson | Sweden | 66-73=139 | −5 |
| T7 | Miguel Ángel Jiménez | Spain | 72-67=139 | −5 |
| T7 | Tom Lehman | United States | 71-68=139 | −5 |
| T7 | Graeme McDowell | Northern Ireland | 71-68=139 | −5 |
| T7 | Sean O'Hair | United States | 67-72=139 | −5 |


Question
How did Louis Oosthuizen perform compared to Calcavecchia in the second round of the 2010 Open Championship?


Answer Format
The final answer should be a sentence and use the following format:
```json
{
    "answer": "your_generated_sentence_here"
}
```
rule
["Louis Oosthuizen shot 67 to move into first place at 132 (−12), five shots ahead of Calcavecchia."]