Table: le_mans_results_4
Columns: year
team
co_drivers
class
laps
pos
class_pos

Question: Who are the co-drivers before 2010 with under 326 laps?
SQL: SELECT "co_drivers" FROM le_mans_results_4 WHERE "year" < 2010 AND "laps" < 326

Question: Who are the co-drivers the risi competizione gt2 class that went under 329 laps and recorded a DNF?
SQL: SELECT "co_drivers" FROM le_mans_results_4 WHERE "laps" < 329 AND "class" = 'gt2' AND "team" = 'risi competizione' AND "pos" = 'dnf'