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

Question: What is the 2011 value that has ATP Masters Series in 2007?
SQL: SELECT "2011" FROM "singles_performance_timeline" WHERE "2007"='atp masters series';

Question: What is the 2011 value that has a 2r in 2008 and a 4r in 2012?
SQL: SELECT "2011" FROM "singles_performance_timeline" WHERE "2008"='2r' AND "2012"='4r';

Question: What is the 2012 value with an A value in 2007 and A value in 2010 in the Canada Masters?
SQL: SELECT "2012" FROM "singles_performance_timeline" WHERE "2007"='a' AND "2010"='a' AND "tournament"='canada masters';

Question: What is the 2012 value with 1r in 2011, 2007 of A, 2010 of 1r, and 2009 of A?
SQL: SELECT "2012" FROM "singles_performance_timeline" WHERE "2011"='1r' AND "2007"='a' AND "2010"='1r' AND "2009"='a';

Question: What is the 2007 value with NMS in 2011?
SQL: SELECT "2007" FROM "singles_performance_timeline" WHERE "2011"='nms';