user: Question: WhAt is the 1999 for An A 1991, And A 1R 1997?
Columns: ['Tournament', '1988', '1990', '1991', '1992', '1993', '1995', '1996', '1997', '1998', '1999', '2000', '2001', 'Career SR', 'Career Win-Loss']
Types: ['text', 'text', 'text', 'text', 'text', 'text', 'text', 'text', 'text', 'text', 'text', 'text', 'text', 'text', 'text']
Sample row: ['Australian Open', 'A', '2R', 'A', 'A', 'A', '1R', 'A', '1R', '2R', '2R', 'A', 'A', '0 / 5', '3–5']
SQL:

assistant: SELECT "1999" FROM "Table" WHERE "1991" = 'A' AND "1997" = '1R';