Question: what is the nationality of the ship Appam?
SQL: SELECT "Nationality" FROM "2-11796827-1" WHERE "Ship" = 'Appam';

Question: what is the tonnage grt of the ship Author?
SQL: SELECT "Tonnage GRT" FROM "2-11796827-1" WHERE "Ship" = 'Author';

Question: what is the most tonnage grt of any ship sunk or captured on 16 Jan 16?
SQL: SELECT MAX("Tonnage GRT") FROM "2-11796827-1" WHERE "Date" = '16 Jan 16';

Question: what is the total tonnage grt of the cargo ship(s) sunk or captured on 4 feb 16?
SQL: SELECT COUNT("Tonnage GRT") FROM "2-11796827-1" WHERE "Type" = 'cargo ship' AND "Date" = '4 feb 16';