user
Instruction
This is a table fact verification task. The goal of this task is to distinguish whether the given statement is entailed or refuted by the given table.


Table
Table Title: 2010 - 11 primeira liga
Table Content:
| team | outgoing head coach | manner of departure | date of vacancy | position in table | incoming head coach | date of appointment |
| --- | --- | --- | --- | --- | --- | --- |
| união de leiria | lito vidigal | sacked | 7 july 2010 | off - season | pedro caixinha | 10 july 2010 |
| marítimo | mitchell van der gaag | sacked | 14 september 2010 | 15th | pedro martins | 14 september 2010 |
| naval 1 de maio | victor zvunka | sacked | 27 september 2010 | 14th | rogério gonçalves | 6 october 2010 |
| académica | jorge costa | resigned | 21 december 2010 | 9th | josé guilherme | 27 december 2010 |
| naval 1 de maio | rogério gonçalves | sacked | 19 december 2010 | 16th | carlos mozer | 30 december 2010 |
| portimonense | litos | sacked | 28 december 2011 | 16th | carlos azenha | 29 december 2010 |
| académica | josé guilherme | resigned | 20 february 2011 | 13th | ulisses morais | 22 february 2011 |
| sporting | paulo sérgio | resigned | 26 february 2011 | 3rd | josé couceiro | 26 february 2011 |
| beira - mar | leonardo jardim | resigned | 28 february 2011 | 10th | rui bento | 1 march 2011 |
| vitória de setúbal | manuel fernandes | sacked | 1 march 2011 | 14th | bruno ribeiro | 1 march 2011 |


Statement
the date of vacancy be after 28 december 2011 with the incoming head coach , carlos azenha


Answer Format
The final answer should be either "entailed" or "refuted" and use the following format:
```json
{
    "answer": "entailed" or "refuted"
}
```
rule
["refuted"]