user: Question: How many different provinces is Baghaberd the center of?
Columns: ['Province (ashkharh)', 'Armenian name', 'Area (km²)', 'Number of cantons (gavars)', 'Center']
Types: ['text', 'text', 'real', 'real', 'text']
Sample row: ['Upper Armenia', 'Բարձր Հայք', 23860.0, 9.0, 'Ani']
SQL:

assistant: SELECT COUNT("Province (ashkharh)") FROM "Table" WHERE "Center" = 'Baghaberd';