Please read the following table in Markdown format and then answer the question according to the table. Table cells in one row are seperated by '|', and different rows are seperated by '
'.

Table:
| No. in series | No. in season | Title | Directed by | Written by | Original air date |
| --- | --- | --- | --- | --- | --- |
| 458.0 | 1.0 | "Out of the Ashes" | Ian Gilmourn | Louise Crane-Bowes | 3February2009 |
| 459.0 | 2.0 | "Dreams and Nightmares" | Jet Wilkinson | Sean Nash | 10February2009 |
| 460.0 | 3.0 | "Day One" | Samantha Lang | Trent Atkinson | 17February2009 |
| 461.0 | 4.0 | "Sins of the Past" | Marcus Cole | Jenny and Lesley Lewis | 24February2009 |
| 462.0 | 5.0 | "Evil is As Evil Does" | Jean-Pierre Mignon | Denise Morgan | 3March2009 |
| 463.0 | 6.0 | "Facing the Music" | Nicholas Buffalo | Michael Miller | 10March2009 |
| 464.0 | 7.0 | "Awake in Fright" | Daniel Nettheim | Lily Taylor | 17March2009 |
| 465.0 | 8.0 | "Behind Closed Doors" | Jet Wilkinson | Sally Webb | 24March2009 |
| 466.0 | 9.0 | "Danger Zone" | Ian Gilmourn | Fiona Kelly | 31March2009 |
| 467.0 | 10.0 | "Pushed Too Far" | Marcus Cole | Chris McCourt & Linda Stainton | 21April2009 |
| 468.0 | 11.0 | "Handle with Care" | Jean-Pierre Mignon | Andrew Kelly | 28April2009 |
| 469.0 | 12.0 | "The Devil Within" | Cherie Nowlan | Sean Nash | 5May2009 |
| 470.0 | 13.0 | "Give & Take" | Ian Watson | Trent Atkinson | 12May2009 |
| 471.0 | 14.0 | "When the Bough Breaks" | Lynn-Maree Danzey | Jeff Truman | 19May2009 |
| 472.0 | 15.0 | "Seeing the Light" | Ian Gilmourn | Alexa Wyatt | 26May2009 |
| 473.0 | 16.0 | "We All Fall Down" | Geoff Bennett | Clare Atkinson | 2June2009 |
| 474.0 | 17.0 | "Bodies in Motion" | Jet Wilkinson | Lily Taylor | 9June2009 |
| 475.0 | 18.0 | "On Second Thoughts..." | Ian Watson | Sally Webb | 16June2009 |
| 476.0 | 19.0 | "Starting Over" | Marcus Cole | Fiona Kelly | 23June2009 |
| 477.0 | 20.0 | "Curve Balls" | Lynn-Maree Danzey | Chris McCourt | 30June2009 |
| 478.0 | 21.0 | "Test of Faith" | Ian Gilmourn | Blake Ayshford | 7July2009 |
| 479.0 | 22.0 | "Blood is Thicker" | Jean-Pierre Mignon | Martin McKenna | 14July2009 |
| 480.0 | 23.0 | "Out of Control" | Jet Wilkinson | Lesley and Jenny Lewis | 21July2009 |
| 481.0 | 24.0 | "In Trust" | Di Drew | Trent Atkinson | 28July2009 |
| 482.0 | 25.0 | "In Duty Bound" | Marcus Cole | Denise Morgan | 4August2009 |
| 483.0 | 26.0 | "The Waiting Game" | Lynn-Maree Danzey | Lily Taylor | 11August2009 |
| 484.0 | 27.0 | "A Precious Waste" | Ian Gilmourn | Clare Atkinson | 18August2009 |
| 485.0 | 28.0 | "Tell-Tale Hearts" | Jean-Pierre Mignon | Trent Atkinson | 25August2009 |
| 486.0 | 29.0 | "Moving On" | Jet Wilkinson | Fiona and Andrew Kelly | 1September2009 |
| 487.0 | 30.0 | "Safe Haven" | Scott Hartford Davis | Chris McCourt | 8September2009 |
| 488.0 | 31.0 | "Win Some, Lose Some" | Marcus Cole | Andrew Kelly | 15September2009 |
| 489.0 | 32.0 | "What It Takes" | Lynn-Maree Danzey | Trent Atkinson | 22September2009 |
| 490.0 | 33.0 | "Too Close for Comfort" | Jean-Pierre Mignon | Jenny Lewis & Hamish Cameron | 29September2009 |
| 491.0 | 34.0 | "Damned If You Do" | Pino Amenta | Martin McKenna | 6October2009 |
| 492.0 | 35.0 | "The Two of Us" | Jet Wilkinson | Kim Wilson & Luke Devenish | 13October2009 |
| 493.0 | 36.0 | "Reality Check" | Di Drew | Blake Ayshford | 20October2009 |
Question:
Who were the writers of episode 20?
Answer:
Chris McCourt