user: ### NOW ANSWER:
Question: What rank did the time of 7:31.90 receive?
Columns: ['Rank', 'Athlete', 'Country', 'Time', 'Notes']
Types: ['real', 'text', 'text', 'text', 'text']
Sample row: [1.0, 'Michelle Guerette', 'United States', '7:28.91', 'SA/B']
SQL:

assistant: SELECT COUNT("Rank") FROM "Table" WHERE "Time" = '7:31.90';