Question: What was the score on a Clay surface in a year later than 2006 with David Ferrer as an opponent?
SQL: SELECT "Score" FROM "2-1439517-2" WHERE "Surface" = 'Clay' AND "Year" > 2006.0 AND "Opponent" = 'David Ferrer';

Question: Which championship is in a year later than 2010 on a Grass surface?
SQL: SELECT "Championship" FROM "2-1439517-2" WHERE "Year" > 2010.0 AND "Surface" = 'Grass';

Question: Which championship has Roger Federer as an opponent on a Clay surface in a year earlier than 2007?
SQL: SELECT "Championship" FROM "2-1439517-2" WHERE "Opponent" = 'Roger Federer' AND "Surface" = 'Clay' AND "Year" < 2007.0;