What's the 2008 of the US Open when 2010 was 2R and 2011 was 1R?
CREATE TABLE "grand_slam_women_s_singles_performance_t" (
  "tournament" text,
  "2008" text,
  "2009" text,
  "2010" text,
  "2011" text,
  "2012" text
);
SELECT "2008" FROM "grand_slam_women_s_singles_performance_t" WHERE "2011"='1r' AND "2010"='2r' AND "tournament"='us open';