user: Question: Who was the First Baseman when the Shortstop was Zoilo Versalles?
Columns: ['Year', 'Catcher', 'First Baseman', 'Second Baseman', 'Shortstop', 'Third Baseman', 'Rightfielder', 'Centerfielder', 'Leftfielder', 'Starting Pitcher']
Types: ['real', 'text', 'text', 'text', 'text', 'text', 'text', 'text', 'text', 'text']
Sample row: [2013.0, 'A. J. Ellis', 'Adrian Gonzalez', 'Mark Ellis', 'Justin Sellers', 'Luis Cruz', 'Andre Ethier', 'Matt Kemp', 'Carl Crawford', 'Clayton Kershaw']
SQL:

assistant: SELECT "First Baseman" FROM "Table" WHERE "Shortstop" = 'Zoilo Versalles';