Table: ufc_94_fights
Columns: card
weight_class
round
time
method

Question: Which method was used in the welterweight class with a preliminary card?
SQL: SELECT "method" FROM ufc_94_fights WHERE "weight_class" = 'welterweight' AND "card" = 'preliminary'

Question: Which method was used in a round greater than 3?
SQL: SELECT "method" FROM ufc_94_fights WHERE "round" > 3

Question: Which weight class had a time of 4:59?
SQL: SELECT "weight_class" FROM ufc_94_fights WHERE "time" = '4:59'

Question: What was the time for a round less than 3?
SQL: SELECT "time" FROM ufc_94_fights WHERE "round" < 3

Question: What is the smallest round for the welterweight class with a preliminary card?
SQL: SELECT MIN("round") FROM ufc_94_fights WHERE "weight_class" = 'welterweight' AND "card" = 'preliminary'