Question: when Changsha 長沙 is the commandery what is the commandery capital?
SQL: SELECT "Commandery capital" FROM "1-278229-1" WHERE "Commandery" = 'Changsha 長沙';

Question: When Yidu 宜都 is the commandery what is the lowest number of countries?
SQL: SELECT MIN("No. of counties") FROM "1-278229-1" WHERE "Commandery" = 'Yidu 宜都';

Question: When Nanhai 南海 is the commandery what is the commandery capital?
SQL: SELECT "Commandery capital" FROM "1-278229-1" WHERE "Commandery" = 'Nanhai 南海';

Question: When Zhang'an County 章安縣 is the commandery capital what is the province?
SQL: SELECT "Province" FROM "1-278229-1" WHERE "Commandery capital" = 'Zhang''an County 章安縣';

Question: When Gaoliang 高涼 is the commandery what is the commandery capital?
SQL: SELECT "Commandery capital" FROM "1-278229-1" WHERE "Commandery" = 'Gaoliang 高涼';