Question: How many sets were played in the 2011 Tournament in which there were 3R in 2007?
SQL: SELECT "2011" FROM "2-13012881-1" WHERE "2007" = '3R';

Question: How many sets were in the 2011 Australian Open Tournament?
SQL: SELECT "2011" FROM "2-13012881-1" WHERE "Tournament" = 'Australian Open';

Question: How many sets were played in the tournament that had 4R in 2011 and 2R in 2008?
SQL: SELECT "2009" FROM "2-13012881-1" WHERE "2011" = '4R' AND "2008" = '2R';

Question: How many sets were played in the 2011 tournament, in which 2R were played in 2008?
SQL: SELECT "2011" FROM "2-13012881-1" WHERE "2008" = '2R';

Question: Which tournament had 1R in 2013?
SQL: SELECT "Tournament" FROM "2-13012881-1" WHERE "2013" = '1R';

Question: How many sets were played in 2007 at the tournament that had 4R in 2011 and 2R in 2009?
SQL: SELECT "2007" FROM "2-13012881-1" WHERE "2011" = '4R' AND "2009" = '2R';