Table: vuelta_2002
Columns: stage
winner
general_classification
points_classification
mountains_classification
combination_classification
team_classification

Question: Name all the team clasification where the combination classification is mederic clain
SQL: SELECT "team_classification" FROM vuelta_2002 WHERE "combination_classification" = 'Mederic Clain'

Question: In how many stages did Jose Vicente Garcia Acosta won?
SQL: SELECT COUNT("stage") FROM vuelta_2002 WHERE "winner" = 'Jose Vicente Garcia Acosta'

Question: What is the minimum stage where Sergei Smetanine won?
SQL: SELECT MIN("stage") FROM vuelta_2002 WHERE "winner" = 'Sergei Smetanine'

Question: what is the minimum stage where mountains classification is aitor osa and aitor gonzález won?
SQL: SELECT MIN("stage") FROM vuelta_2002 WHERE "mountains_classification" = 'Aitor Osa' AND "winner" = 'Aitor González'