Question: Who were the rowers who had a time of 7:39.70?
SQL: SELECT "Rowers" FROM "2-18662704-5" WHERE "Time" = '7:39.70';

Question: Who were the rowers from China wh had a rank smaller than 4?
SQL: SELECT "Rowers" FROM "2-18662704-5" WHERE "Rank" < 4.0 AND "Country" = 'China';

Question: What is the notes for the rowers from Denmark?
SQL: SELECT "Notes" FROM "2-18662704-5" WHERE "Country" = 'Denmark';