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:
| Episode | Airdate | Iron Chef | Challenger | Theme Ingredient | Winner |
| --- | --- | --- | --- | --- | --- |
| 1.0 | 19 October 2010 | Neil Perry | Matt Stone | Coconut | Neil Perry |
| 2.0 | 26 October 2010 | Guy Grossi | Judyta Slupnicki | Duck | Guy Grossi |
| 3.0 | 2 November 2010 | Guillaume Brahimi | Chris Badenoch | Chocolate | Guillaume Brahimi |
| 4.0 | 9 November 2010 | Guy Grossi | Herb Faust | Lamb | Herb Faust |
| 5.0 | 16 November 2010 | Neil Perry | Sasha Meier | Squid | Neil Perry |
Question:
Who was the challenger when guillaume brahimi was the iron chef?
Answer:
Chris Badenoch