Table: criterium_2008
Columns: stage
winner
general_classification
mountains_classification
points_classification
team_classification

Question: What winner has silence-lotto as the team classification?
SQL: SELECT "winner" FROM criterium_2008 WHERE "team_classification" = 'silence-lotto'

Question: What general classification has david de la fuente as mountains classification, and thor hushovd as points classification?
SQL: SELECT "general_classification" FROM criterium_2008 WHERE "mountains_classification" = 'david de la fuente' AND "points_classification" = 'thor hushovd'

Question: What general classification has levi leipheimer as points classification?
SQL: SELECT "general_classification" FROM criterium_2008 WHERE "points_classification" = 'levi leipheimer'

Question: What team classification has alejandro valverde as points classification, with alejandro valverde as the winner, with 3 as the stage?
SQL: SELECT "team_classification" FROM criterium_2008 WHERE "points_classification" = 'alejandro valverde' AND "winner" = 'alejandro valverde' AND "stage" = '3'

Question: What winner has pierre rolland as mountains classification, with 7 as the stage?
SQL: SELECT "winner" FROM criterium_2008 WHERE "mountains_classification" = 'pierre rolland' AND "stage" = '7'

Question: What general classification has 4 as the stage?
SQL: SELECT "general_classification" FROM criterium_2008 WHERE "stage" = '4'