Table: sbk_assen_2007
Columns: rider
bike
laps
time
grid

Question: What is the grid number for troy corser with under 22 laps?
SQL: SELECT SUM("grid") FROM sbk_assen_2007 WHERE "rider" = 'troy corser' AND "laps" < 22

Question: What rider went under 22 laps with grid number 2?
SQL: SELECT "rider" FROM sbk_assen_2007 WHERE "laps" < 22 AND "grid" = 2