Table: pampoulova_ela_tennis_stats
Columns: tournament
1988
1990
1991
1992
1993
1995
1996
1997
1998
1999
2000
2001
career_sr
career_win_loss

Question: What was the 1999 Tournament at the US Open?
SQL: SELECT "1999" FROM pampoulova_ela_tennis_stats WHERE "tournament" = 'us open'

Question: What tournament was an A 1988, and a 2R 1999?
SQL: SELECT "tournament" FROM pampoulova_ela_tennis_stats WHERE "1988" = 'a' AND "1999" = '2r'

Question: What is the 1991 for 2R 1999?
SQL: SELECT "1991" FROM pampoulova_ela_tennis_stats WHERE "1999" = '2r'

Question: What is the 1999 for an A 1991, and a 1r 1997?
SQL: SELECT "1999" FROM pampoulova_ela_tennis_stats WHERE "1991" = 'a' AND "1997" = '1r'

Question: What is the 1991 with a 2r 1996?
SQL: SELECT "1991" FROM pampoulova_ela_tennis_stats WHERE "1996" = '2r'