Table: gray_maynard_fight_record
Columns: res
record
opponent
method
event
round
time
location

Question: What was the method for the resolution of nc where the fight lasted less than 3 rounds?
SQL: SELECT "method" FROM gray_maynard_fight_record WHERE "round" < 3 AND "res" = 'nc'

Question: Who was the opponent during the UFC 90 event with a fight that lasted less than 4 rounds?
SQL: SELECT "opponent" FROM gray_maynard_fight_record WHERE "round" < 4 AND "event" = 'ufc 90'

Question: What was the method for the resolution of the fight at UFC 160?
SQL: SELECT "method" FROM gray_maynard_fight_record WHERE "event" = 'ufc 160'