Table: mma_fights_2
Columns: res
record
opponent
method
round
time

Question: Which Record has a Result of loss, and a Time of 3:54?
SQL: SELECT "record" FROM mma_fights_2 WHERE "res" = 'loss' AND "time" = '3:54'

Question: Which Record has a Method of submission (heel hook), a Round larger than 1, and a Time of 2:28?
SQL: SELECT "record" FROM mma_fights_2 WHERE "method" = 'submission (heel hook)' AND "round" > 1 AND "time" = '2:28'

Question: What is the smallest round resulting in a draw with an Opponent of mari kaneko?
SQL: SELECT MIN("round") FROM mma_fights_2 WHERE "res" = 'draw' AND "opponent" = 'mari kaneko'