user: Question: How many production stage managers worked with secretary Rachel Hartmann?
Columns: ['Year', 'Chairman', 'Artistic Director', 'Performance Liaison', 'Secretary', 'Business manager', 'Production Stagemanager', 'Dramaturge', 'Public Relations', 'First/Second Year Rep.', 'Male Rep.']
Types: ['text', 'text', 'text', 'text', 'text', 'text', 'text', 'text', 'text', 'text', 'text']
Sample row: ['2012-2013', 'Emma Carter', 'Kathleen Bryant', 'Colleen Perry', 'Olivia Romeo', 'Shinah Brashears', 'Xandii Barber', 'Danielle Wineman', 'Mariah Lee', 'Katie Pautler and Devery North', 'John Lampe']
SQL:

assistant: SELECT COUNT("Production Stagemanager") FROM "Table" WHERE "Secretary" = 'Rachel Hartmann';