user: Question: What country has SA/B as the notes, and a time of 5:51.30?
Columns: ['Rank', 'Rowers', 'Country', 'Time', 'Notes']
Types: ['real', 'text', 'text', 'text', 'text']
Sample row: [1.0, 'Huang , Wu , Zhang , Tian', 'China', '5:51.30', 'SA/B']
SQL:

assistant: SELECT "Country" FROM "Table" WHERE "Notes" = 'SA/B' AND "Time" = '5:51.30';