user: Question: How many different total EVAs are there for the walk that lasted 45:34?
Columns: ['Number', 'Astronaut', 'Agency', 'Total EVAs', 'Total Time Hours:Minutes']
Types: ['real', 'text', 'text', 'real', 'text']
Sample row: [1.0, 'Solovyev Anatoly Solovyev', 'RSA', 16.0, '82:22']
SQL:

assistant: SELECT COUNT("Total EVAs") FROM "Table" WHERE "Total Time Hours:Minutes" = '45:34';