user: Question: What is the heat number of the athlete who finished in 2:23.95?
Columns: ['Heat', 'Lane', 'Name', 'Nationality', 'Time']
Types: ['real', 'real', 'text', 'text', 'text']
Sample row: [6.0, 7.0, 'Davide Rummolo', 'Italy', '2:12.75']
SQL:

assistant: SELECT "Heat" FROM "Table" WHERE "Time" = '2:23.95';