Table: formula_one_1986_race
Columns: rnd
race
date
location
pole_position
fastest_lap
race_winner
constructor
report

Question: What was the date for monaco grand prix?
SQL: SELECT "date" FROM formula_one_1986_race WHERE "race" = 'Monaco Grand Prix'

Question: What was the date for the pole position of alain prost?
SQL: SELECT "date" FROM formula_one_1986_race WHERE "pole_position" = 'Alain Prost'

Question: What is the race winer of the portuguese grand prix?
SQL: SELECT "race_winner" FROM formula_one_1986_race WHERE "race" = 'Portuguese Grand Prix'