user: Question: What is the value in 1988 when it is 2R in 1997 and SF in 1993?
Columns: ['Tournament', '1985', '1986', '1987', '1988', '1989', '1990', '1991', '1992', '1993', '1994', '1995', '1996', '1997', '1998', '1999', '2010', '2011']
Types: ['text', 'text', 'text', 'text', 'text', 'text', 'text', 'text', 'text', 'text', 'text', 'text', 'text', 'text', 'text', 'text', 'text', 'text']
Sample row: ['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', 'Grand Slam tournaments', 'Grand Slam tournaments', 'Grand Slam tournaments', 'Grand Slam tournaments']
SQL:

assistant: SELECT "1988" FROM "Table" WHERE "1997" = '2R' AND "1993" = 'SF';