Table: giro_1992
Columns: stage
winner
general_classification
points_classification
mountains_classification
young_rider_classification
intergiro_classification
trofeo_fast_team

Question: During stage 21, who held the Intergiro classification?
SQL: SELECT "intergiro_classification" FROM giro_1992 WHERE "stage" = '21'

Question: During which stage was gatorade the Trofeo Fast Team?
SQL: SELECT "stage" FROM giro_1992 WHERE "trofeo_fast_team" = 'gatorade'

Question: Who held the Intergiro classificaiton when the Trofeo Fast Team is gb-mg maglificio?
SQL: SELECT "intergiro_classification" FROM giro_1992 WHERE "trofeo_fast_team" = 'gb-mg maglificio'

Question: During which stage was the Intergiro classification held by Miguel Indurain, the Points classification held by Mario Cipollini, and the Young rider classification held by Leonardo Sierra?
SQL: SELECT "stage" FROM giro_1992 WHERE "intergiro_classification" = 'miguel indurain' AND "points_classification" = 'mario cipollini' AND "young_rider_classification" = 'leonardo sierra'

Question: Who was the winner when the General classification was held by Miguel Indurain, the Points classification held by Mario Cipollini, the Mountains classification held by Claudio Chiappucci, and the Young RIder classification held by Pavel Tonkov?
SQL: SELECT "winner" FROM giro_1992 WHERE "general_classification" = 'miguel indurain' AND "points_classification" = 'mario cipollini' AND "mountains_classification" = 'claudio chiappucci' AND "young_rider_classification" = 'pavel tonkov'