Table: grand_prix_1987
Columns: driver
constructor
laps
time_retired
grid

Question: What is the largest laps for Time/Retired of + 2 laps, and a Grid of 13?
SQL: SELECT MAX("laps") FROM grand_prix_1987 WHERE "time_retired" = '+ 2 laps' AND "grid" = 13

Question: What company constructed the car with more than 0 laps and shows 5 for grid?
SQL: SELECT "constructor" FROM grand_prix_1987 WHERE "laps" > 0 AND "grid" = 5

Question: What is the sum of laps for Derek Warwick?
SQL: SELECT SUM("laps") FROM grand_prix_1987 WHERE "driver" = 'derek warwick'