user: Question: What is the period total number if the name is Geraldão?
Columns: ['Name', 'Position', 'Period', 'Appearances¹', 'Goals¹', 'Nationality²']
Types: ['text', 'text', 'text', 'real', 'real', 'text']
Sample row: ['Marcelo Gallardo', 'Midfielder', '2007 – 2008', 28.0, 2.0, 'Argentina']
SQL:

assistant: SELECT COUNT("Period") FROM "Table" WHERE "Name" = 'Geraldão';