Question: What country has SA/B as the notes, and a time of 5:51.30?
SQL: SELECT "Country" FROM "2-18662673-3" WHERE "Notes" = 'SA/B' AND "Time" = '5:51.30';

Question: Who were the rowers when notes were SA/B, with a time of 5:51.30?
SQL: SELECT "Rowers" FROM "2-18662673-3" WHERE "Notes" = 'SA/B' AND "Time" = '5:51.30';

Question: What country is ranked larger than 4?
SQL: SELECT "Country" FROM "2-18662673-3" WHERE "Rank" > 4.0;