Table: swedish_motorcycle_gp
Columns: year
track
125_cc
250_cc
report

Question: What is the name of the track that hosted the Swedish Grand Prix in 1979?
SQL: SELECT "track" FROM swedish_motorcycle_gp WHERE "year" = '1979'

Question: What year did Barry Sheene win the 125 cc?
SQL: SELECT "year" FROM swedish_motorcycle_gp WHERE "125_cc" = 'barry sheene'

Question: Who won the 250 cc in 1987?
SQL: SELECT "250_cc" FROM swedish_motorcycle_gp WHERE "year" = '1987'

Question: At what track resulted in Fausto Gresini winning the 125 cc and Carlos Lavado winning the 250 cc?
SQL: SELECT "track" FROM swedish_motorcycle_gp WHERE "125_cc" = 'fausto gresini' AND "250_cc" = 'carlos lavado'

Question: Who won the 250 cc in 1985?
SQL: SELECT "250_cc" FROM swedish_motorcycle_gp WHERE "year" = '1985'