Table: paris_nice_results
Columns: stage_winner
general_classification
points_classification
mountains_classification
young_rider_classification
team_classification

Question: What stage (winner) has thor hushovd as a general classification, and trent lowe as a rider classification?
SQL: SELECT "stage_winner" FROM paris_nice_results WHERE "general_classification" = 'thor hushovd' AND "young_rider_classification" = 'trent lowe'

Question: What stage (winner) has quick step as the team classification, and trent lowe as the young rider classification?
SQL: SELECT "stage_winner" FROM paris_nice_results WHERE "team_classification" = 'quick step' AND "young_rider_classification" = 'trent lowe'