CREATE TABLE table_9743 ("Tournament" TEXT, "1985" TEXT, "1986" TEXT, "1987" TEXT, "1988" TEXT, "1989" TEXT, "1990" TEXT, "1991" TEXT, "1992" TEXT, "1993" TEXT, "1994" TEXT, "1995" TEXT, "1996" TEXT, "1997" TEXT, "1998" TEXT, "1999" TEXT, "2010" TEXT, "2011" TEXT)

What is the value in 1990 when it is A in 1989, 1985, and 1993?
SELECT "1990" FROM table_9743 WHERE "1989" = 'a' AND "1985" = 'a' AND "1993" = 'a'
SELECT "1990" FROM "table_9743" WHERE "1985" = 'a' AND "1989" = 'a' AND "1993" = 'a'