user: Question: When in 2009 season has a Group of Group B, and Cancha del Mystic with a Club of El Tecal?
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 "2009 season" FROM "Table" WHERE "Group" = 'Group B' AND "Stadium" = 'Cancha del Mystic' AND "Club" = 'El Tecal';