user: Question: Name the sprint classification being Alejandro Valverde
Columns: ['Stage', 'Winner', 'General Classification', 'Mountains Classification', 'Sprint Classification', 'Team Classification']
Types: ['real', 'text', 'text', 'text', 'text', 'text']
Sample row: [1.0, 'Thor Hushovd', 'Thor Hushovd', 'no award', 'no award', 'Cervélo TestTeam']
SQL:

assistant: SELECT "Sprint Classification" FROM "Table" WHERE "Winner" = 'Alejandro Valverde';