Task: NL2SQL (source dataset: WikiSQL)

Natural language to SQL, also known as NL2SQL, is the problem of generating a SQL query that can be executed on a input table, for a given natural language question.

You will be given an input table called "table" in the markdown format, as well as a question. Your task is to generate an SQL query that can be executed on the input table to answer the question.

Please ensure that the generated SQL only return relevant columns being specifically asked in the question (e.g., in SQL please don't return more than one columns in SELECT if only one column is needed to answer the given question, and similarly please refrain from using SELECT * unless the entire row is needed to answer the question).
 
When generating SQL code, please use the SQLite syntax to ensure that your SQL is executable on SQLite3. Use only columns that are present in the table, always use quotes around your column and table names (some column names have punctuation or special characters), and refer to the columns using the column-names exactly as they appear in the table, do not add or remove punctuation (underscore, slash, etc.)

No explanation, return the code only with the following markdown codeblock format : ```sql<SQL CODE>```. For example, ```sql
SELECT * FROM "table"
``` is a valid format.

Table:
| Period   | Internet Explorer   | Firefox   | Safari   | Opera   | Netscape   | Other Mozilla   |
|:---------|:--------------------|:----------|:---------|:--------|:-----------|:----------------|
| 2011 q2  | 54.36%              | 21.67%    | 7.30%    | 1.97%   | 0.79%      | 0.03%           |
| 2011 q1  | 56.19%              | 22.11%    | 6.43%    | 2.20%   | 0.75%      | 0.03%           |
| 2010 q4  | 58.27%              | 22.80%    | 5.59%    | 2.24%   | 0.67%      | 0.03%           |
| 2010 q3  | 60.29%              | 22.93%    | 5.17%    | 2.40%   | 0.52%      | 0.02%           |
| 2010 q2  | 60.01%              | 24.24%    | 4.78%    | 2.33%   | 0.49%      | 0.12%           |
| 2010 q1  | 61.43%              | 24.40%    | 4.55%    | 2.37%   | 0.52%      | 0.15%           |
| 2009 q4  | 63.67%              | 24.46%    | 4.41%    | 2.29%   | 0.32%      | 0.11%           |
| 2009 q3  | 66.80%              | 23.06%    | 4.13%    | 2.07%   | 0.50%      | 0.09%           |
| 2009 q2  | 68.06%              | 23.00%    | 3.67%    | 2.05%   | 0.68%      | 0.06%           |
| 2009 q1  | 69.13%              | 22.67%    | 3.58%    | 2.18%   | 0.51%      | 0.06%           |
| 2008 q4  | 71.99%              | 20.78%    | 3.11%    | 2.15%   | 0.41%      | 0.07%           |
| 2008 q3  | 74.93%              | 19.07%    | 2.73%    | 2.06%   | 0.43%      | 0.07%           |
| 2008 q2  | 76.24%              | 18.16%    | 2.73%    | 1.97%   | 0.48%      | 0.08%           |
| 2008 q1  | 77.83%              | 16.86%    | 2.65%    | 1.84%   | 0.41%      | 0.13%           |
| *2007 q4 | *79.16%             | *15.84%   | *2.39%   | *1.78%  | *0.50%     | *0.09%          |
| *2007 q3 | *78.85%             | *14.69%   | *4.80%   | *0.51%  | *0.76%     | *0.11%          |
| *2007 q2 | *78.76%             | *14.92%   | *4.66%   | *0.46%  | *0.83%     | *0.15%          |
| *2007 q1 | *79.38%             | *14.35%   | *4.70%   | *0.50%  | *0.77%     | *0.19%          |
| *2006 q4 | *80.69%             | *13.50%   | *4.06%   | *0.56%  | *0.86%     | *0.23%          |
| *2006 q3 | *82.88%             | *11.89%   | *3.30%   | *0.62%  | *0.88%     | *0.26%          |
| *2006 q2 | *84.03%             | *10.67%   | *3.25%   | *0.57%  | *0.98%     | *0.32%          |
| *2006 q1 | *85.01%             | *9.77%    | *3.10%   | *0.53%  | *1.09%     | *0.36%          |
| *2005 q4 | *85.88%             | *9.00%    | *2.80%   | *0.54%  | *1.25%     | *0.43%          |
| *2005 q3 | *86.74%             | *7.97%    | *2.24%   | *0.55%  | *1.92%     | *0.48%          |
| *2005 q2 | *87.24%             | *8.08%    | *1.89%   | *0.52%  | *1.62%     | *0.59%          |
| *2005 q1 | *89.02%             | *6.17%    | *1.70%   | *0.49%  | *1.89%     | *0.67%          |
| *2004 q4 | *91.35%             | *3.66%    | *1.50%   | *0.51%  | *2.09%     | *0.80%          |
| period   | internet explorer   | firefox   | safari   | opera   | netscape   | other mozilla   |

Question: What percentage of users were using Safari during the period in which 2.33% were using Opera?

table_id: 2-1876262-7
label: SELECT "Safari" FROM "table" WHERE "Opera" = "2.33%"