user: Question: Which City has a Stadium of Estadio San Cristóbal?
Columns: ['Club', 'City', 'Stadium', '2009 season', 'Group']
Types: ['text', 'text', 'text', 'text', 'text']
Sample row: ['Atlético Nacional', 'Panama City', 'Estadio Javier Cruz', '3rd in LNA', 'Group B']
SQL:

assistant: SELECT "City" FROM "Table" WHERE "Stadium" = 'Estadio San Cristóbal';