Table: malaysian_grand_prix_2002
Columns: driver
constructor
laps
time_retired
grid

Question: What is the average number of laps for grid 8?
SQL: SELECT AVG("laps") FROM malaysian_grand_prix_2002 WHERE "grid" = 8

Question: Who built the car that has a Time/Retired of 1:34:12.912?
SQL: SELECT "constructor" FROM malaysian_grand_prix_2002 WHERE "time_retired" = '1:34:12.912'