user: Question: What is the 1989 result of the tournament in which Katerina Maleeva finished 4R in 1991?
Columns: ['Tournament', '1984', '1985', '1986', '1987', '1988', '1989', '1990', '1991', '1992', '1993', '1994', '1995', '1996', '1997']
Types: ['text', 'text', 'text', 'text', 'text', 'text', 'text', 'text', 'text', 'text', 'text', 'text', 'text', 'text', 'text']
Sample row: ['Australian Open', 'A', '3R', 'NH', 'A', 'A', 'A', 'QF', 'QF', '4R', '4R', '1R', '1R', 'Q1', 'A']
SQL:

assistant: SELECT "1989" FROM "Table" WHERE "1991" = '4R';