Question: Who directed all the episodes that were written by Aaron Ehasz & John O'Bryan?
SQL: SELECT "Directed by" FROM "1-14562722-1" WHERE "Written by" = 'Aaron Ehasz & John O''Bryan';

Question: What was the production code of the episode that was written by Michael Dante DiMartino and directed by Lauren MacMullan?
SQL: SELECT "Production code" FROM "1-14562722-1" WHERE "Written by" = 'Michael Dante DiMartino' AND "Directed by" = 'Lauren MacMullan';

Question: What was the airdate of the episode that was directed by Giancarlo Volpe and written by is John O'Bryan?
SQL: SELECT "Original air date" FROM "1-14562722-1" WHERE "Directed by" = 'Giancarlo Volpe' AND "Written by" = 'John O''Bryan';