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

Question: Who was the opponent in UFC 19?
SQL: SELECT "opponent" FROM liddell_fight_record WHERE "event" = 'ufc 19'

Question: Who was the opponent in UFC 66 who lasted for more than 1 round?
SQL: SELECT "opponent" FROM liddell_fight_record WHERE "round" > 1 AND "event" = 'ufc 66'