CREATE TABLE table_51664 ("Driver" CLOB, "Constructor" CLOB, "Laps" FLOAT, "Time/Retired" CLOB, "Grid" FLOAT)

What is the smallest grid with collision as the Time/Retired for pedro diniz?
SELECT MIN("Grid") FROM table_51664 WHERE "Time/Retired" = 'collision' AND "Driver" = 'pedro diniz'
SELECT MIN("Grid") FROM "table_51664" WHERE "Driver" = 'pedro diniz' AND "Time/Retired" = 'collision'