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:
| Special | Original airdate | Iron Chef | Challenger | Challenger Specialty | Theme Ingredient | Winner |
| --- | --- | --- | --- | --- | --- | --- |
| Millennium Cup | January 5, 2000 | Chen Kenichi | Zhao Renliang ( 趙仁良 Chō Jinryō ? ) | Chinese (Beijing) | Abalone | Chen Kenichi |
| Millennium Cup | January 5, 2000 | Rokusaburo Michiba | Dominique Bouchet | French | Kobe beef | Rokusaburo Michiba |
| New York Special | March 28, 2000 | Masaharu Morimoto | Bobby Flay | Southwestern | Rock crab [ disambiguation needed ] | Masaharu Morimoto |
| 21st Century Battles | January 2, 2001 | Hiroyuki Sakai | Toshirō Kandagawa | Japanese | Red snapper | Toshirō Kandagawa |
| 21st Century Battles | January 2, 2001 | Masaharu Morimoto | Bobby Flay | Southwestern | Spiny lobster | Bobby Flay |
| Japan Cup | January 2, 2002 | Chen Kenichi | Yūichirō Ebisu (胡 雄一郎) | Italian | King crab | Chen Kenichi |
| Japan Cup | January 2, 2002 | Kimio Nonaga (野永喜三夫) | Takeshi Tanabe (田辺 猛) | Japanese (Nonaga); French (Tanabe) | Pacific bluefin tuna | Kimio Nonaga |
Question:
Who was the challenger when winner was kimio nonaga?
Answer:
Takeshi Tanabe (田辺 猛)