Table: t_1984_dutch_grand_prix
Columns: driver
constructor
laps
time_retired
grid

Question: What is the lowest grid that has over 67 laps with stefan bellof driving?
SQL: SELECT MIN("grid") FROM t_1984_dutch_grand_prix WHERE "laps" > 67 AND "driver" = 'stefan bellof'

Question: How many laps have a grid under 14 and a time/retired of out of fuel?
SQL: SELECT SUM("laps") FROM t_1984_dutch_grand_prix WHERE "grid" < 14 AND "time_retired" = 'out of fuel'

Question: Who drove the renault that went over 23 laps and had a grid under 11?
SQL: SELECT "driver" FROM t_1984_dutch_grand_prix WHERE "grid" < 11 AND "constructor" = 'renault' AND "laps" > 23