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:
| Tournament | 2001 | 2002 | 2003 | 2004 | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 | 2012 | 2013 |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| Grand Slam Tournaments | Grand Slam Tournaments | Grand Slam Tournaments | Grand Slam Tournaments | Grand Slam Tournaments | Grand Slam Tournaments | Grand Slam Tournaments | Grand Slam Tournaments | Grand Slam Tournaments | Grand Slam Tournaments | Grand Slam Tournaments | Grand Slam Tournaments | Grand Slam Tournaments | Grand Slam Tournaments |
| Australian Open | A | Q1 | Q2 | Q3 | Q1 | 3R | 1R | 1R | 1R | 3R | 1R | 2R | 3R |
| French Open | A | Q2 | Q2 | 1R | 1R | 1R | 1R | Q1 | 1R | 2R | 3R | 1R | 4R |
| Wimbledon | A | 1R | Q3 | Q3 | 3R | A | 2R | Q2 | 3R | 2R | 3R | 4R | 4R |
| US Open | 1R | Q1 | A | 1R | 1R | 1R | 1R | 2R | 1R | 1R | 3R | QF | QF |
Question:
What is Tournament, when 2003 is "A"?
Answer:
US Open