CREATE TABLE "singles_performance_timeline" (
  "tournament" text,
  "2005" text,
  "2006" text,
  "2007" text,
  "2008" text,
  "2009" text,
  "2010" text,
  "2011" text,
  "2012" text
);

Question: Which tournament has 1r in 2011, 1r in 2012, A in 2005, and 1r in 2010?
SQL: SELECT "tournament" FROM "singles_performance_timeline" WHERE "2011"='1r' AND "2012"='1r' AND "2005"='a' AND "2010"='1r';

Question: What is the 2010 value with a 1r in 2012 and an A in 2005?
SQL: SELECT "2010" FROM "singles_performance_timeline" WHERE "2012"='1r' AND "2005"='a';

Question: What is the tournament with a 2r in 2009 and a 2r in 2010?
SQL: SELECT "tournament" FROM "singles_performance_timeline" WHERE "2009"='2r' AND "2010"='2r';

Question: What is the 2011 value of the 2012 grand slam tournaments?
SQL: SELECT "2011" FROM "singles_performance_timeline" WHERE "2012"='grand slam tournaments';