CREATE TABLE fires (fire_year DECIMAL, discovery_date DECIMAL, discovery_doy DECIMAL, discovery_time TEXT, stat_cause_code DECIMAL, stat_cause_descr TEXT, cont_date TEXT, cont_doy TEXT, cont_time TEXT, fire_size DECIMAL, fire_size_class TEXT, latitude DECIMAL, longitude DECIMAL, owner_code DECIMAL, owner_descr TEXT, state TEXT, county TEXT, fips_code TEXT, fips_name TEXT)

What was the cause of the largest wildfire in Utah in the year 1997?
SELECT * FROM fires WHERE state = "UT" AND fire_year = 1997 ORDER BY fire_size DESC LIMIT 1
SELECT * FROM "fires" WHERE "UT" = "state" AND "fire_year" = 1997 ORDER BY "fire_size" DESC NULLS LAST LIMIT 1