Table: giro_1983
Columns: stage
winner
general_classification
points_classification
trofeo_fast_team

Question: Which Points classification has a Trofeo Fast Team of metauro mobili-pinarello, and a Stage of 6?
SQL: SELECT "points_classification" FROM giro_1983 WHERE "trofeo_fast_team" = 'metauro mobili-pinarello' AND "stage" = '6'

Question: Which stage has a Winner of lucien van impe?
SQL: SELECT "stage" FROM giro_1983 WHERE "winner" = 'lucien van impe'

Question: Which Trofeo Fast Team has a Winner of alessandro paganessi?
SQL: SELECT "trofeo_fast_team" FROM giro_1983 WHERE "winner" = 'alessandro paganessi'

Question: Which General classification has a Stage of 7?
SQL: SELECT "general_classification" FROM giro_1983 WHERE "stage" = '7'

Question: Which Winner has a Trofeo Fast Team of metauro mobili-pinarello, and a General classification of giuseppe saronni?
SQL: SELECT "winner" FROM giro_1983 WHERE "trofeo_fast_team" = 'metauro mobili-pinarello' AND "general_classification" = 'giuseppe saronni'