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:
|   Series # |   Season # | Title                     | Directed by      | Written by                          | Original air date   |   Production code |   U.S. viewers (millions) |
|-----------:|-----------:|:--------------------------|:-----------------|:------------------------------------|:--------------------|------------------:|--------------------------:|
|        151 |          1 | " my jerks "              | michael spiller  | angela nissel                       | january6,2009       |               801 |                      6.76 |
|        152 |          2 | " my last words "         | bill lawrence    | aseem batra                         | january6,2009       |               802 |                      6.64 |
|        153 |          3 | "my saving grace"         | michael spiller  | janae bakken                        | january13,2009      |               803 |                      4.48 |
|        154 |          4 | "my happy place"          | ken whittingham  | taii k. austin                      | january13,2009      |               804 |                      4.48 |
|        155 |          5 | " my abc's "              | bill lawrence    | bill lawrence                       | january27,2009      |               713 |                      5.12 |
|        156 |          6 | "my cookie pants"         | gail mancuso     | clarence livingston                 | january27,2009      |               805 |                      5.05 |
|        157 |          7 | "my new role"             | will mackenzie   | dave tennant                        | february3,2009      |               806 |                      4.9  |
|        158 |          8 | "my lawyer's in love"     | mark stegemann   | debra fordham                       | february3,2009      |               811 |                      4.7  |
|        159 |          9 | "my absence"              | john putch       | debra fordham & andy schwartz       | february10,2009     |               812 |                      4.6  |
|        160 |         10 | "my comedy show"          | ted wass         | devin o. mahoney & c. rego marquiis | february10,2009     |               807 |                      4.23 |
|        161 |         11 | " my nah nah nah "        | john putch       | kevin biegel                        | march18,2009        |               712 |                      5.8  |
|        162 |         12 | "their story ii"          | michael mcdonald | andy schwartz                       | march25,2009        |               808 |                      5.33 |
|        163 |         13 | "my full moon"            | john michel      | kevin biegel                        | april1,2009         |               813 |                      5.04 |
|        164 |         14 | "my soul on fire: part 1" | bill lawrence    | bill callahan                       | april8,2009         |               809 |                      4.66 |
|        165 |         15 | "my soul on fire: part 2" | bill lawrence    | bill callahan                       | april15,2009        |               810 |                      5.3  |
|        166 |         16 | "my cuz"                  | linda mendoza    | kevin biegel                        | april22,2009        |               814 |                      4.66 |
|        167 |         17 | "my chief concern"        | zach braff       | neil goldman & garrett donovan      | may5,2009           |               815 |                      3.83 |

Question: Who wrote the episode directed by Ken Whittingham?

table_id: 1-23097214-1
label: SELECT "Written by" FROM "table" WHERE "Directed by" = "Ken Whittingham"