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:
| Date | Tournament | Winning score | Margin of victory | Runner(s)-up |
| --- | --- | --- | --- | --- |
| 6 Sep 1999 | State Farm Rail Classic | -12 (66-68-70=204) | 1 stroke | Janice Moodie , Pearl Sinn |
| 10 Oct 1999 | First Union Betsy King Classic | -8 (68-72-70-70=280) | 1 stroke | Beth Daniel , Helen Dobson , Jenny Lidback |
| 24 Sep 2000 | Safeway LPGA Golf Championship | -1 (70-73-72=215) | Playoff | Jeong Jang |
| 21 Jul 2002 | Giant Eagle LPGA Classic | -14 (65-68-69=202) | 1 stroke | Kelly Robbins |
| 4 Aug 2002 | Wendy's Championship for Children | -8 (68-67-73=208) | 1 stroke | Hee-Won Han |
| 30 Apr 2006 | Ginn Clubs & Resorts Open | -12 (70-66-69-71=276) | 2 strokes | Lorena Ochoa , Karrie Webb |
| 16 Jul 2006 | Jamie Farr Owens Corning Classic | -18 (68-66-67-65=266) | Playoff | Natalie Gulbis |
| 6 May 2007 | SemGroup Championship | -3 (71-68-71=210) | Playoff | Juli Inkster |
Question:
What is the margin of victory in a semgroup championship?
Answer:
Playoff