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

Question: Which 2009 has a 2008 of A, and a 2010 of 4r?
SQL: SELECT "2009" FROM "performance_timeline" WHERE "2008"='a' AND "2010"='4r';

Question: Which 2009 has a 2008 of wta premier mandatory tournaments?
SQL: SELECT "2009" FROM "performance_timeline" WHERE "2008"='wta premier mandatory tournaments';

Question: Which 2010 has a Tournament of australian open?
SQL: SELECT "2010" FROM "performance_timeline" WHERE "tournament"='australian open';

Question: Which 2007 has a 2006 of A, and a Tournament of canada?
SQL: SELECT "2007" FROM "performance_timeline" WHERE "2006"='a' AND "tournament"='canada';

Question: Which 2009 has a 2006 of A, and a 2011 of sf?
SQL: SELECT "2009" FROM "performance_timeline" WHERE "2006"='a' AND "2011"='sf';

Question: Which 2007 has a 2010 of A?
SQL: SELECT "2007" FROM "performance_timeline" WHERE "2010"='a';