user
Instruction
Answer the question based on the provided table.


Table
Table Title: 'Chief Judges since 1974' regarding 'List of Chief Judges of the New York Court of Appeals'
Table Content:
| Name | Took office | Left office | Notes |
| --- | --- | --- | --- |
| Lawrence H. Cooke | January 23, 1979 | December 31, 1984 | First Chief Judge appointed by the Governor under constitutional amendment of 1977; age-limited |
| Sol Wachtler | January 2, 1985 | November 11, 1992 | Resigned |
| Richard D. Simons (acting) | November 17, 1992 | March 22, 1993 | Acted until the appointment of a successor |
| Judith S. Kaye | March 23, 1993 | December 31, 2008 | Reached mandatory retirement age; Chief Judge with the longest tenure (more than 15 years), only Chief Judge to complete a 14-year term |
| Jonathan Lippman | February 11, 2009 | December 31, 2015 | - |
| Eugene F. Pigott, Jr. (acting) | January 1, 2016 | January 21, 2016 | - |
| Janet DiFiore | January 21, 2016 | incumbent | - |


Question
How long did Jonathan Lippman serve as the Chief Judge?


Answer Format
The final answer should be a sentence and use the following format:
```json
{
    "answer": "your_generated_sentence_here"
}
```
rule
["Jonathan Lippman served 6 years as Chief Judge of the New York Court of Appeals from 2009 through 2015."]